Perfect!
A few more:
Bouncing a glass marble on a glass table top will shatter it
Bouncing the same glass marble on a TV screen will shatter it
Putting a medium powered magnet to a color TV will screw up the colors for at least 24 hours
If you take a clock/radio/VCR/phone apart, please know how to put it back together
Gerbils should never be taken out of their cages "just to play"
Too many crank calls about you being in an accident will make your mother not believe it when you're in a REAL accident until the hospital calls and it shows up on caller ID
Hanging all the pictures at an angle, taking doors off their hinges (and then hiding the doors) changing the kitchen cabinet doors where the handle is out of your mother's reach and taping down toliet paper and paper towel rolls so they spin and you never get something to latch on to us cruel.
And those are just the ones I can remember off hand.