Jokes - a natural antidepressant?

I was feeling depressed earlier on, then stumbled onto some stand up comedy videos on YouTube and began to feel a bit better. Makes me wonder if more people are depressed now because the art of telling a joke is dying out a bit.

So how about a joke thread?

I was driving in the car the other day and I had an awful accident. I got out and the other driver did too, he was a little man. He had an awfully sour look on his face. I said, "Are you grumpy?" He said, "No." I said, "Well, which one are you then?"