Salvador Dali broke his jaw while putting his fist in his mouth as a party trick. He was trying to impress the woman who would later become his wife.
Odontophobia is the fear of teeth.
Queen Victoria wore a bridal veil made from human hair.
According to USA Today, North Koreans must abide by one of 28 approved haircuts. Unmarried women must have short hair, but married woman have many more options. The hair of young men should be less than 2 inches long, older men can go as long as 2¾.
Since 1968 onwards, more Americans have died from gunfire on home soil than in all the wars in United States history.
See other: Quite Interesting Facts
Knowledge Guild 
“Since 1968 onwards, more Americans have died from gunfire on home soil than in all the wars in United States history.” – And yet the state of Texas is considering an open-carry gun law, which means you can take your children to a McDonalds, and sit beside a man shouldering carrying an AK-47. Yay!
Homer: I’d like to buy your deadliest gun, please.
Salesman: Aisle six, next to the sympathy cards.
[…]
Homer: Just give me my gun!
Salesman: Sorry, the law requires a five day waiting period. We’ve got to run a background check.
Homer: Five days? But I’m mad now!
– The Simpsons (1997) Season 9, Episode 5 “The Cartridge Family” [No. 183]
“Homer: Five days? But I’m mad now!” – Exactly!
“Since 1968 onwards, more Americans have died from gunfire on home soil than in all the wars in United States history.”
It’s shocking, but it’s true.