One, ......A Greek will screw anything!
It doesn't matter how many you get, because all they'll do is sit around complaining about how misogynistic the use of the word "screw" is.
When they're on their backs, they're screwed.
Five - one to hold the bulb, and four to turn his ladder
Four. One to change it and three to write the environmental-impact statement.
Psi...
Because they're greasy
