In Denmark, a very common cuss word is Satan. My mum wasn't religious, but didn't care for her son to cuss, so she told me that if you call his name, he will come for you. I'm 21 years old and still get chills when someone cusses.
A childhood belief about characters

others believed things like this
- My father used to call soya sauce "monkey blood". I didn't even consider tasting it for years!— Me
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny
- i used to think that the word 'clothes' was the plural for 'clo.' so i'd call a sock or a shirt a clo. — jessimocha
- when I was young, I thought Denmark was a state, just like Deleware and North Dakota.— valerie
- My niece used to call Marmite Falloy! Where she got the word Falloy from nobody knows— Russ
- I used to believe that my cat was a reincarnation of the buddha and was sent by satan to squash me.— Nazza