Five. One to change the bulb and eleven to say they could do it faster.
or
Shamboo!
Frankenstein: Witch can you make me a lemonade?
Witch: Poof you are a lemonade!
or
The barman says, "Is this some kind of joke?"
or
Because all his uncles were "ants"!
or
Twenty. One to hold the bulb, two to turn the ladder, and 17 to be on the guest list.
or
When the spider spied her!
or
When the door is open.
or
Decalfinated
or
A porcupine.
or