Your grandparents.
3, duh. (My ex's 9 year old little sister told me this joke, and followed is up with: "and YOU'RE the math guy!" >< Burned.)
Arfson
He wanted to have drinks on the house.
Get off me holmes!
Kermit the Frog's finger
Kermit the Frog
Dead ant. Dead ant. Dead ant, dead ant, dead ant.*
Spay it don't spray it.
Incense!
Depends
So they won't run out of time