lightbulb

How many paranoids does it take to screw in a lightbulb? What exactly do you mean by that?

Q. How many telemarketers does it take to change a light bulb? A. Only one, but he has to do it while you’re eating dinner.

How many magicians does it take to change a light bulb? Into what?

How many psychologists does it take to change a light bulb? Only one, but the bulb has got to WANT to change.