Enter, Bad Jokes by Logan...
L: Mom, are you smart or dumb?
M: I'm the smartest person you will ever meet.
L: If you have a fish tank, with 8 fish in it...and you take one out. How many fish do you have?
M: In the fish tank? (I've been tricked like this before)
L: Yea (as he rolls his eyes)
M: uh, 7.
L: NO! You can't just take a fish out of a fish tank, it will DIE!
Yea, he's got a ton of these.