Bozo The Clown has real hair on his head.
or
Punch.
or
I mean he did say he was a private tutor.
or
It wasn't raining!
or
Three:
One to write the light bulb removal program,
one to write the light bulb insertion program, and
one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.
or
A snail because it carries it's home.
or