Oh, I also thought that if lightning struck while I was taking a stuff, it would come up through the toilet and kill me.
In 4th grade, I thought cooties were a genetically engineered bacteria used to prevent under-age mating.
But some guy did die a day after he planted a crabapple tree in my backyard.He died in my loving room.
... What?
For a while I believed that all bees (and wasps and hornets) were killer bees.