Jim Jones, I heard he took out 909 people with one punch.
One to screw in the lightbulb, stock four carts of supplies, and handle seventeen simultaneous customers at any one time for five consecutive hours.
Two of my favorites are:
Because after they ate the clowns, nothing is funny.
It's ok, he woke up.
Both can knock you out at a party.
You can punch information into a computer.
The punchline is too long.
The punchlines are too long.