A coworker stopped by a few minutes ago for our usual ten-minute cock-and-bull session in the afternoon. I explained my challenge of the week, and he replied, "Huh. You did seem less talkative yesterday. I figured there was something wrong." I said, "Oh, there's something wrong with me..." and immediately thought, why did I say that? It's not funny. It's like the "you don't have to be crazy to work here, but it helps!" type of humor. Blah.
This isn't to say I don't think I'm ever funny. I fall down sometimes, and that's funny. It's just, I throw a lot out there. Maybe it's better to choose your moments, than to always try to be Funny Guy.