Related:

• 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 Geminis -- does it take to change a light bulb?
  Two, but they never change it - they just keep arguing about who is supposed to do it and how it's supposed to be done....
• How many laboratory heads (senior researchers, etc.
  ) -- does it take to change a light bulb? Five; one to change the light bulb, the other four to stand around arguing whether he/she is taking the right approach....
• How many punk rockers -- does it take to change a light bulb?
  Three. One to do it and two to argue about who did it first....
• How many Ethiopians -- does it take to change a light bulb?
  Three. One to change it and two to squabble over who gets to eat the packaging....
• How many husbands -- does it take to change a light bulb?
  We'll know as soon as one gets off the couch and does it....
• How many nihilists -- does it take to change a light bulb? There is nothing to change.
• How many Purdue engineering students -- does it take to change a light bulb?
  One, and he gets three credit-hours for it....
• How many quantum physicists -- does it take to change a light bulb?
  One. Two to do it, and one to renormalise the wave function....