A man working in an office has been refused annual leave but wants the day off to take his son to football. He goes into work to convince his boss that he is mad and needs to be sent home.
His boss arrives and finds the man hanging upside down from the cieling claiming to be a lightbulb. "What on earth are you doing"? says the boss..."I'm a lightbulb" replies the man.
"You best go home, you are clearly insane and need some time off to get better".
Blond administrator asks why the man is going home. Boss replies that he thinks he is the lightbulb and must go home ill. The blond turns to leave the office. Boss asks "where do you think you're going". Blond replies "Can't work with no lights"!!! smile