Believe It Or Not, These Aren't Actually Design Flaws

The Arrow Next to the Gas Gauge

Have you ever driven someone else's car and then realized you have no idea which side the gas tank is on when you pull up to the station? That arrow on the gas gauge actually points to which side the tank is on. That way, you don't have to waste time checking and moving your car.

The More You Know

A newborn baby is more than 3/4 water.
The toilet is statistically the cleanest place in your home. Your desk, kitchen sink, and cellphone all have more bacteria.
Some cats are allergic to people.
The designer of the current United States flag was 17 at the time, and created it for a high school project. He received a B-.

Post originally appeared on Upbeat News.