Hawking Walks Into a Bar

Alright, listen up buttercup. The joke is funny 'cause Stephen Hawking, you know, the genius dude, couldn't actually walk into a bar. He was wheelchair-bound because of a disease called amyotrophic lateral sclerosis (ALS). So, the joke sets you up to expect a regular bar joke, but then pulls the rug out from under you by reminding you of his physical condition. Get it? Good, now go back to drooling.