I found this over at Todd's site - http://www.recruitwarstories.com/2009/09/wanted-little-office-humor... . To wit:

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These are some excerpts from articles by Ms Lynn Lievonen on HR.com
Sick Leave:

I urgently needed a few days off work, but I knew the Boss would not allow me to take a leave. I thought that maybe if I acted "CRAZY" then he would tell me to take a few days off. So, I hung upside down on the ceiling and made funny noises. My co-worker asked me what I was doing.

I told her that I was pretending to be a light bulb so that the Boss would think I was "CRAZY" and give me a few days off. A few minutes later the Boss came into the office and asked, "What are you doing?

I told him I was a light bulb.He said, "You are clearly stressed out. Go home and recuperate for a couple of days."

I jumped down and walked out of the office.

When my co-worker followed me, the Boss asked her, "And where do you think you're going?"(You're gonna love this.....) She said, "I'm going home too, I can't work in the dark."

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Got me smiling! :)