Stephen Hawking Walks Into a Bar

Alright, listen up, crayon-eater. The joke is a play on words. Usually, 'walked into a bar' means going into a pub to drink. But here, it means he literally collided head-first with a solid metal bar, implying that physical accident paralyzed him. In reality, he had ALS, but I guess your single brain cell prefers slapstick physics. Do better.