From: utzoo!decvax!harpo!seismo!rlgvax!guy
Newsgroups: net.jokes
Title: Re: What's the difference...
Article-I.D.: rlgvax.1169
Posted: Fri Mar 11 14:01:26 1983
Received: Sat Mar 12 06:03:00 1983

The version I heard was:

Q:  What do you get when you cross a mountain climber with a mosquito?

A:  You can't cross a scaler with a vector.

				Guy Harris