A taxi driver.
or
The letter H.
or
Finding a cabinet position for the thing on his head!
or
Four. One to change the bulb and three to whine "It's too high"
or
They screw millions of bulbs every day, but when it comes to your bulbs, there's no record.
or
Shamboo!
Frankenstein: Witch can you make me a lemonade?
Witch: Poof you are a lemonade!
or