A funny joke...

I seem to be stuck on punctuation these days. I was just reminded of a joke/forward that goes around from time to time. I'm not sure of its original source.
It goes something like this:

A college professor wrote a sentence on the blackboard with no punctuation. It looked like this:

Woman without her man is nothing

The professor then asked two students to punctuate it. The first student was male, and he did this:

Woman, without her man, is nothing.

The second student was female, and punctuated it this way:

Woman: without her, man is nothing.

Isn't it funny what a difference a punctuation mark makes?