3 men are ordered to be executed by guillotine, A priest, a lawyer, and a theoretical physicist.

One day, there were three gentlemen about to lose their heads to the guillotine. There was a priest, a lawyer, and a theoretical physicist. They put the priest's head on the chopping block and they asked him, "Do you have any last words before we cut your priestly head off?" And the priest said, "Yes, yes, god, god from above, he shall certainly set me free". While all eyes were on the blade, they raised the blade, and the blade came down and it stopped right before it hit the neck of the priest. Well, the monk have never seen this before, they were shocked! They said, "God has spoken, let the priest go." Next, they put the lawyer's head sown the chopping block, and they asked him, "Do you have any last words before we cut your lawyerly head off?" And he said, "Yes, maybe the spirit of justice and mercy, they shall set me free." They raised the blade, and the blade came down, stopping right before it hit the neck of the lawyer. And this time, the crowd went crazy. They said, "Let there be a national holiday, today god, justice and mercy have spoken". And at last, lets see about that theoretical physicist. They put the physicist's head on the chopping block, and they asked him, "Do you have any last words before we cut your head off?" And he said, "Yeah, yeah, I got some last words. I don't know to much about god, and I know even less about the law, but I do know one thing... If you look up, you'll see that the rope is stuck on the poly". And then he said, "If you remove the rope, the blade should come down really good". Well, the rope came down, the blade came down, and the poor physicist's head came down.

I got this from Michio Kaku at a presentation.

Edit: Words.