Cartoon Laws Of Physics

I love these Cartoon Laws of Physics
Cartoon Law IX: Everything falls faster than an anvil.
Cartoon Law X : For every vengeance there is an equal and opposite revengeance. This is the one law of animated cartoon motion that also applies to the physical world at large. For that reason, we need the relief of watching it happen to a duck instead.
Cartoon Law Amendment A: A sharp object will always propel a character upward.