George Carlin was a funny man. For evidence
He did the same bit more than once but had he done only the same thing he would have been ungodly dull. Indeed, if he had only the one schtick he'd of been Sarah Palin. He had other jokes, for example:
So to all you dimbulbs out there who think that asking a cyclist if the bike has a heater or if it's cold enough for them, let me just say you are more like Sarah Plain and Dumb than you are like George. Just because it's the first time you told the joke doesn't mean it's the first time I've heard it.