I live in Arizona so when I was little, we were always told to watch out for the jumping cacti. My next-door neighbor had a jumping cactus in his front yard, so my friends and I would take turns going up to it to see if it would "jump" at us(I didnt know you actually had to touch it and it just breaks easily). It never "jumped" at me so I felt superior and would brag to my friends that it liked me.
A childhood belief about plants

others believed things like this
- i used to believe i looked exactly like michael jackson when he dance - when i was jumping.— sandy.
- A motorcycle was started by jumping up and down and bouncing on the seat.Anon
- My Mum told me she invented skipping and I believed her and told all my friends - still living that one downAnon
- One of my friends told me that when he was a kid he thought windmills were used to keep cows cool!— Julie
- My little sister told all her friends that Clint Eastwood was the singer of the band Gorrilaz.. ^^;
— Saffy - I used to think that you could get a tan if you turned the oven on, opened the door and stood in front of it.Anon