How Many Techno Dancers -- Does It Take To Change A Light Bulb?

How many philosophers -- does it take to change a light bulb?
Three. One to change it and two to stand around arguing over whether or not the light bulb exists....
How many university students -- does it take to change a light bulb?
Two. One to hold it and one to turn him around....
How many blondes -- does it take to change a light bulb?
Three. One to hold the light bulb, two to spin the ladder....
How many egotists -- does it take to change a light bulb?
One. He holds onto the light bulb, and waits for the world to revolve around him....
How many tourists -- does it take to change a light bulb?
Six: One to hold the bulb and five to ask for directions....
How many firemen -- does it take to change a light bulb?
Four - one to change the bulb and three to cut a hole in the roof....
How many Californians does it take to change a light bulb?
Four. One to change the bulb and three to share the experience....
How many poets -- does it take to change a light bulb?
Three. One to curse the darkness, one to light a candle... ... and one to change the bulb....
How many U.S marines -- does it take to screw in a light bulb?
50. One to screw in the light bulb and the remaining 49 to guard him ....