Okay, say you're a kid (about, oh, twelve years old and roughly five feet tall). Where would be some really weird places for you to hide well in and be able to scare someone by randomly appearing out of? This can be anywhere, such as a store or in a house or in a car or in the streets or anywhere. I've been looking all over Google, but no dice for places where kids can hide or squeeze into and my brain isn't really coming up with much except a garbage can, a pile of dirty laundry, a dryer, on a fridge, and in the ceiling.
(Most of the people in the world are dead, so there's no one around to protest any of the locations including other people's houses, dog houses, employees only workplaces, in a forest, in a barn, etc. This takes place in the south-eastern states, like Georgia and in any weather.)
...Oddly enough, I'm finding none of the tags apply.
I'd like to thank everyone who has replied so far. Keep those comments coming! :)