Schrödinger and Heisenberg out for a drive

Noted physicists Schrödinger and Heisenberg are driving around in a car, and Heisenberg goes "I think we just ran over a cat."

"Is it dead?" asks Schrödinger.

"I can't be certain", says Heisenberg.

I saw this on a FreeBSD forum today and thought it was just laugh out loud funny.  If you have no idea who Schrödinger and Heisenberg are, check the links.