You: Why did the chicken cross the road?
Random person: Why?
You: To get to the idiot's house!
Random person: What?
You: Knock knock.
Random person: Who's there?
You: The chicken.
Listen up, chucklehead. The chicken crossed the road to get to the "idiot's" house. Then, when the idiot answers the door, the joke reveals that *you* are the idiot, because the chicken is at *your* door. Congrats, you played yourself. Also, fun fact, you probably eat a lot of dino nuggies.