It takes two. One to change the bulb, and the other to kick the switch.
or
Take away his credit card
or
Shamboo!
Frankenstein: Witch can you make me a lemonade?
Witch: Poof you are a lemonade!
or
Because there are too many ears.
or
To see time fly.
or
Three skunks fighting over a pickle
First dog: My master calls me Furball. How about you?
Second Dog: My master calls me Sitboy
or