Q. John is a mathematician. John is a nihilist. John can’t tell a cow from a donut. What does John study?
A. Yep, pointless topology!
Thank you, thank you, I’ll be here all week. . . .
The next James Bond film will be called Quantum of Solace. Heh, I can’t wait.
I prefer the version “John can’t tell himself from a donut”, because it seems to carry the implication that John eats lots of donuts.
There’s never a bad joke which the Internet can’t make worse. Ah, the wisdom of crowds!