After seeing the movie The Little Mermaid, I was totally convinced for about a month that Ursula was going to come out from under my bed and wrap her tentacles around me. I slept with my arms to my sides and my legs locked together so she couldn't reach.
A childhood belief about under my bed

others believed things like this
- I used to believe that if I wet my legs in the sea I would become a mermaid.
— andrea - My uncle convinced me that if you ate octopus, the suckers on the tentacles would suck your tongue out— Minnie
- I used to beleive that all pains were headaches. So for example, I had headaches in my stomach, legs and arms.— James
- I convinced my sister that chocolate milk was made out of Keebler cookie elves, she believed me for a month— Rainbow Steel
- I used to confuse tentacles and testicles when I was younger. It was funny— Chelsea
- My Dad convinced me that Manx cats had no tail - and only three legs.— Jim