Not in the "classical" buttered-toast-on-cat scenario. In the classical scenario, a slice of buttered toast it attached to the back of the cat (usually with duct tape) so that the buttered side is facing up if the cat is standing on its feet. When the cat-buttered-toast object is dropped from any height two laws regarding the components come into play. Firstly, a falling cat will always land on its feet. Secondly, a falling piece of buttered toast will always fall buttered-side down. When the cat-buttered-toast object falls, one of the "laws" will be violated assuming the cat-buttered-toast object does indeed hit the ground. Again, in the classical scenario the cat either ends up perpetually spinning above the ground, or simply floats in mid air.

In your example you are using a non-traditional cat-buttered-toast model in which the cat is placed on top of the buttered toast in such a manner that the cat ends up with buttery paws. This model is not used for various reasons. Firstly, the difficulty of attaching toast to all four paws of the cat is at least an order of magnitude greater than simply attaching the toast to said cats back. Although various attempts at slicing the toast have overcome this difficulty, the amount of effort required is always greater than attaching the toast to the cat's back.

In any event, the results of the non-traditional model are usually the same as the classical. Our cat with buttery paws is dropped from a height and attempts to land on its feet, however the toast that is attached to its feed attempts to land buttered-side down.

Now, it should be noted that defenders of the classical scenario usually point out that the toast, relative to the cat, has already succeeded in landing buttered side down by the nature of it being attached to the cats paws. If the cat were to hit the ground while standing on the toast, it would be akin to someone steping on a slice of toast after it has already landed on the floor, buttered side down. Basically it would be irrelevant as the goal of the toast to attach its buttered side to a surface has already been acomplished.

So, although I used the traditional buttered-toast-on-cat model and the non-traditional models are at least partially flawed, I believe I made the correct decision in its use.