1

Driving barefoot

Image: Ashley Byrd

No federal or state law in the U.S. bans driving barefoot. Though sometimes discouraged for safety reasons, driving barefoot is legal in all 50 states (and in most countries worldwide as well).

While police might ask you to put your shoes on during a traffic stop, it’s merely a suggestion, not a legal requirement. In most modern cars, driving barefoot presents no significant safety risks, but it could affect insurance claims. If you’re involved in an accident while barefoot, you might face increased scrutiny from insurers.

2

Riding in the back of a pickup truck

Image: Richard Lu

This is a bit of a gray area. There is no federal law regulating the practice, but some states or local jurisdictions may impose restrictions, often including age limits.

In rural areas, most people won’t bat an eye if you ride in the bed. However, it can be considered a safety risk and may serve as an aggravating factor if you’re stopped for speeding or other traffic violations.

3

Cursing in public

Image: Kristina Flour

While it’s common courtesy not to go around hurling insults and profanity, the truth is no one can legally require you to stop if you are so inclined.

This is because profanity is generally protected speech. However, "generally" is doing some heavy lifting here, as depending on the context, it could be considered provocation or incitement to violence.

4

Sleeping in your car

Image: lucas Favre

It’s not illegal to sleep in your car unless local ordinances specifically prohibit it in certain areas, such as city streets or commercial lots.

Often, it has nothing to do with sleeping whatsoever, as in some places, all overnight parking at rest stops is prohibited or limited to just a few hours. Some Walmart lots might allow it, but that’s a private policy—not a law—and you should check with the local manager to be sure.

5

Eating while driving

Image: Dmitriy Frantsev

There’s no blanket law against eating while driving, though it can be considered a distraction. If it leads to unsafe driving, you could be cited.

Washington State’s distracted driving law bans holding electronic devices and allows extra fines for erratic driving caused by distractions , including eating or drinking . Some states, such as New Jersey, have considered banning it entirely, but most proposed laws are too vague to be enforced clearly.

6

Owning a flamethrower

Image: Tali Despins

Surprisingly, there’s no federal law in the U.S. that bans civilian flamethrower ownership. However, a few states do impose restrictions; California and Maryland have strict laws prohibiting or regulating them.

Some companies even market flamethrowers for agricultural use, like controlled burns or weed clearing. But misuse of a flamethrower can lead to serious legal charges—for instance, arson, reckless endangerment, or other criminal or civil liabilities.

7

Ignoring someone knocking at your door

Image: Aaron Burden

No law requires you to open your door to anyone, including police, unless they have a warrant.

If you're pulled over while driving or stopped on the street, you’re generally required to comply with police instructions. But if you're inside your home with the door closed—and ideally locked—you’re under no obligation to respond at all.

8

Selling homemade food without a license

Image: Museums of History New South Wales

Most states require permits or inspections to sell food commercially. However, many states have "cottage food laws" that allow limited sales of certain homemade goods without a license.

But if you scale up beyond small-batch home production, you’ll likely face a citation—and a hefty fine—from the authorities.

9

Backyard burials

Image: Jennifer Grismer

Believe it or not, there’s no federal law against burying human remains on private property. Many states allow it, provided you have the proper paperwork, such as a death certificate and burial permit. Local zoning laws may regulate factors like location, depth, and proximity to water sources or property lines.

Similarly, pet burials are generally permitted, but local ordinances can vary —so it’s important to check them first.

10

Using a fake name online

Image: Sander Sammy

Unless it’s used for fraud or to impersonate a real person, using an alias on social media or online forums isn’t a crime.

Some platforms may prohibit it in their terms of service, but that’s a civil matter—not a criminal one. Legal issues generally arise only if the alias is used to cause harm, deceive others, or commit financial fraud.

11

Flying the U.S. flag at night without lighting

Image: Shelley Pauls

The U.S. Flag Code suggests that the flag should be illuminated if flown at night, but this is just a general guideline, not a legally enforceable law.

Stricter requirements may apply to government buildings, but for private citizens, the code is purely advisory and symbolic.

1

Measuring

This is a difference most Americans are aware of: most countries use the metric system rather than U.S. customary units, and most use Celsius instead of Fahrenheit. Countries such as the UK and Canada still use some imperial units in everyday life, but they mainly use the metric system. Another measure that confuses foreigners is the particular way ingredients are measured in American recipes, which often use cups, tablespoons, and teaspoons rather than measurements by weight.

Fun fact: The only other countries that use the Imperial system officially are Liberia and Myanmar.

2

Sales tax

Do you find having to calculate sales taxes annoying? That’s a unique American experience. In the majority of the world, the price you see is the price you pay , because it has the sales tax already added.

Why is it different in America? Sales taxes vary across states , so retailers find it easier to showcase the base price and then calculate the total at checkout.

3

Cutlery use

Many Americans abroad are surprised by the realization that not everyone uses a knife and fork in the same way they do . In fact, no one else does. While most Americans have learned the American style —also called the zig-zag or fork switching method— that involves using the fork in the left hand for cutting and then changing it to the right to pick up the food, European and Latin American countries don’t do this . It might seem like a small difference, but it completely changes the way you eat.

4

Iced drinks

Do other countries not have ice? They do, but they don’t necessarily assume everyone will want it. While serving water and other beverages with ice is customary in America, in many other countries, you need to request it —even during the hottest of summers.

But even if you get ice, many times you will need to specify the amount : the same drink that would be filled with ice cubes in America might come to you with just two or three cubes elsewhere.

5

Date formatting

The U.S. is not completely alone on this one, but there’s a difference big enough to be worth mentioning. The standardized way of recording the date in America is month-day-year , a convention also followed by some Caribbean and Asian countries. But in the rest of the Western world, the conventional format is day-month-year , which can lead to confusion for Americans. In most Asian countries , the most commonly used format is year-month-day .

6

The word ‘American’

In the English language, ‘American’ is the only way to refer to people with U.S. citizenship . Other words, such as ‘Usian’ or ‘Unitedstatian’ have been proposed, but never stuck. This is why many Americans are surprised when other countries —Latin American countries in particular— use ‘American’ for anyone in the American continent , or continents, another big difference. In most European and Latin American countries, there is a different word for U.S. citizens, such as the Spanish ‘estadounidense’ or the Portuguese ‘estadunidense’ .

7

Moving out at 18 years old

This one is not so black and white, but more like a general tendency. Compared with most of Europe, Latin America, and Asia, Americans give serious consideration to the possibility of moving out after high school. Not everyone does, and not everyone can afford it, but it's fairly common.

In other countries, young adults generally move out if their job or education requires it , but they tend to stay at home a few more years if they can.

8

Driving a car as a teenager

America is quite car-centric , especially if you live outside of the big cities. While not everyone can afford to have a personal car —even a second-hand one—, it is common for 16 and 17-year-olds to legally drive their parents’ car, or save for their own.

In the rest of the world, the chances of high schoolers driving themselves to school are much lower, as most countries don’t allow underage kids to get a driving license .

9

Solo cups

Do plastic cups exist outside of the U.S.? They do, but they are not as iconic or as widely used as Solo cups, introduced in the 1970s as a disposable but sturdy cup for parties and events. Many foreigners visiting America are surprised when they realize that solo cups are a real thing , and not something that just happens in movies.

10

Filing taxes

Taxes in the U.S. are not that different from taxes in other countries, except for how they are filed . During tax filing season, thousands of Americans direct their efforts to ensure they have properly reported their income and that their return will match the IRS’s data.

In other parts of the world, however, the one responsible for calculating and filing taxes is the government , while citizens merely corroborate that everything is in order.

1

The Cardiff Giant

In 1869, workers digging a well in Cardiff, New York, uncovered what appeared to be a 10-foot-tall petrified man. Locals rushed to see the "giant," paying admission to witness history in the soil.

But, as it turned out, it wasn’t ancient at all. A man named George Hull had buried the statue as a prank and made some quick money from the curious crowd.

2

War of the Worlds Broadcast

This very famous hoax took place on the eve of Halloween 1938. Orson Welles’s radio adaptation of The War of the Worlds aired as if it were breaking news . Many listeners tuning in late thought Martians had really landed in New Jersey.

Some packed up their cars or called the police in panic. Though no invasion occurred, the broadcast became a legend in media history.

3

The Balloon Boy

In 2009, Americans watched live TV coverage of a silver balloon drifting across the skies of Colorado , fearing that a six-year-old boy was trapped inside . The story gripped the nation for hours.

When the balloon finally landed empty, police discovered the child hiding safely at home. His parents later admitted it was a publicity stunt gone wrong.

4

The Feejee Mermaid

In 1842, showman P. T. Barnum unveiled a marvel: a preserved "mermaid" supposedly from the South Seas . Crowds lined up to see the half-fish, half-woman curiosity.

The truth was stranger still. It was the upper body of a monkey sewn onto a fish tail and covered in papier-mâché.

5

The Great Moon Hoax

Readers of The New York Sun in 1835 were astonished by reports claiming that scientists had spotted bat-like people and crystal palaces on the Moon through a powerful new telescope.

The story was pure invention, but circulation went up. By the time the truth came out, the paper’s readership had reportedly increased dramatically.

6

The Crop Circles Craze

When perfect circles began appearing overnight in wheat fields , people talked about UFO landings. The shapes seemed too precise to have been made by human hands.

But, in 1991, two Englishmen confessed they’d used boards and ropes to flatten the crops. While this revelation explained many of the formations, the mystery lives on in popular imagination.

7

Alien Autopsy Film

In 1995, a grainy black-and-white video surfaced, showing doctors dissecting what seemed to be an alien recovered from the 1947 Roswell crash. The footage spread quickly worldwide.

Years later, the filmmaker admitted that the film was staged, using latex models and fake organs.

8

The Manti Te’o girlfriend hoax

Notre Dame football star Manti Te’o captured hearts when he revealed that his girlfriend had died of leukemia . Sports fans wept over the tragic love story.

But reporters later learned that the woman never existed. It was an elaborate online catfishing scheme.

9

The Patterson–Gimlin Bigfoot film

In 1967, a short film shot in California showed a large, hairy creature striding through the woods . Many viewers thought this was real proof of Bigfoot´s existence.

Decades later, one participant claimed it was a man in a gorilla suit, but that claim failed to convince many people who prefer to believe in the existence of this creature.

10

The Drake’s Plate of Brass

In 1936, a shiny brass plate found in California seemed to confirm that explorer Sir Francis Drake had landed there in 1579. Historians called it a priceless relic.

For decades, the plate was displayed proudly, until metallurgical tests in 1977 proved it was modern . It had been made as a practical joke among historians that went too far.

11

Paul Is Dead

The final entry on our list might not be American per se, but it drew much attention on these shores. In 1969, rumors spread that Beatle Paul McCartney had died and been secretly replaced by a double . Fans scoured album covers for "clues" like hidden messages and backward songs.

Paul, very much alive, later joked about it. The bizarre theory became a lasting pop-culture phenomenon.