One day Heisenberg is stopped by the police. The officer walks to Heisenberg's car.
Heisenberg: "Anything wrong Officer?"
Officer: "Do you know what speed you were doing, Sir?"
Heisenberg: "No, but I know exactly where I was."
Rene Descartes walks into a bar. He says to the bartender, "Give me a Bud light." The bartender asks, "Do you want a glass?" Descartes says, "I think not.." and promptly disappears.
Wow, I just saw that this was the original posted joke. I guess great minds think alike. Inferior minds don't read what they're responding to.