A guy wanted some time off work but had no leave left. He thought if he acted crazy his boss would send give him a few days off. He decided to hang upside down from the ceiling making buzzing noises...

... a co-worker saw him and asked what he was doing. He explained that he was pretending to be a light bulb to get a few days sick leave.

His boss walked in in a saw him buzzing away upside down on the ceiling. He asked what he was doing. He told him he was being a light bulb. His boss told him he had obviously been working too hard and to go home for a few days rejuvenation. The guy climbed down and trotted out of the office.

His co-worker packed her belongings and started to follow him. “And where do you think you’re going?” The boss asked.

“I’m going home too. If the light isn’t working, you can’t expect me to work in the dark!”