#5 Did you know that if you went outside and laid down on your back with your mouth open, statistically you would have to wait 195 years until a bird pooped in it?

This is a rather disgusting topic, but a rather funny one :D

I accidentally ended up on a website which answers weird what-if questions people ask. This was one of them...

https://what-if.xkcd.com/11/ 

If you keep reading the article long enough, you will also come across an explanation, how come we actually measure gas mileage (gallons of gas per mile (America) or liters of petrol per 100 km (Europe)) in square meters.