* Cats always land on their feet.
* Buttered toast always lands buttered side down.
The paradox arises when one considers what would happen if one attached a piece of buttered toast (butter side up) to the back of a cat, then dropped the cat from a great height.
the cat is heavier than the toast so would have control, now if you had a piece of toast that was bigger and heavier than cat, that would be intresting . . . and funny to watch.