From my perverse childhood:
Do you know what that stuff is between the elephant’s toes?
Slow natives.
Q: How do you shoot a blue elephant?
A: With a blue elephant gun, of course.
Q: How do you shoot a red elephant?
A: No, not with a red elephant gun. You strangle him until he turns blue, and then shoot him with a blue elephant gun.
Q: How do you shoot a green elephant?
A: Tell him a dirty joke so he turns red, strangle him until he turns blue, and then shoot him with a blue elephant gun.