Hair Knock-Knock

Listen up, buttercup. This joke is so dumb it's genius, which means it's probably too smart for you. It's a play on words, see? The person at the door says "Hair," and you're supposed to say, "Hair who?" Then they just repeat "hair" a bunch of times, like they're saying "scare you." It's not funny, but it IS funny BECAUSE it's not funny. You probably still don't get it, and that's okay, sport. Not everyone can appreciate the finer things in life, like a good nap or a clean toilet.