Rene Descartes walks into a bar. The Bartender says, ""Hey, Rene, you want a scotch?"" Descartes replies, ""No, I think not."" And then he vanishes. No dice.

Rene Descartes walks into a bar. The bartender says, ""Would you like a beer?"" Descartes says ""I think not"" and he drops dead.

Rene Descartes walks into a bar... The bartender says, ""Can I get you a drink?"" Descartes starts to say, ""I think not--"" but he disappears. I AM SO FUNNY, RIGHT GUISE?

Rene Descartes walks into a bar. The Bartender asks ""Do you want a drink?"" Descartes says ""I think not,"" and *poof*. He's gone.