What silly things have stuck with you since childhood?

For a better idea of what I'm asking, my example is that episode of Dexter's Laboratory where all of the kids are scared to go to the back of the bus because it's dark and scary and such, and one of the kids tells the story where one kid (who's now at the back of the bus) killed one spider and a swarm of spiders "kidnapped" him and took him to the back of the bus.

Even now, whenever I kill/dispose of a spider, I think of that and get a small shiver.