When I was little I used to help my mom change the sheets on my bed and every time I'd see that little tag on the end of it. One night I got curious as to what was on it so I pulled the sheets up and read it. Among other things it read: DO NOT REMOVE. Upon further investigation I found that both my parents' and my brothers' mattresses said the same thing. Therefore, for some odd reason, I concluded that if you ever removed those tags some kind of government people (I don't know, the FBI or maybe IRS) would come and arrest you. I believed this for many years.
Come to find out, me and my dad were talking the other day about my new mattresses when he told me one of his childhood beliefs... I was amazed to hear my own beleif about the mattress tag be repeated by father, as his own when he was that age! Wierd family paranoia I guess, haha!
A childhood belief about under my bed

others believed things like this
- When the police are talking about "rap sheets," I thought that the criminals were making rap music.Anon
- I used to believe that when I used up all the sheets in my desk scratch pad, I would be married.— Barb
- I used to believe that undercover cops hid under covers/sheets. — Holly
- I used to think I smelled wrong, but I figured out it was because we never used dryer sheets. — blnkfrnk
- I believed the sun and the moon were the same thing, just rotated to change from day to night.— Daniel
- I used to believe that fax machines and computers sent real sheets of paper through the lines.— H