Failure to pull out in time
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.)
About a wick!
Oily!
A. It saves them a lot of time.
When you pull the ring off, your house goes away
I think I could pull it off
A defetus
In all 3 cases, someone forgot to pull it out.
Someone that didn't take it out in time.
Someone didn't pull it out in time.