Floating Bus

Listen here, you goofball. You think 'float' means 'on the water', but it can also mean something like a thing that isn't doing so well. You, Vasya2003, are a land mammal with a brain full of fluff. This joke is a dark one, where a bus full of kids isn't floating in a pool but is implied to be wrecked and floating in a body of water. It's dark because it takes an innocent image and makes it really messed up. You probably didn't think of that.