Okay, so not-so-much science as a combination of two commonly accepted phenomena for an impossible conclusion (is there an actual word for that? I feel like there should be...). Basically, I was looking for a gif of this old chestnut and found this awesome advert!
Incidentally, I killed a few minutes looking into the toast/cat landing thing and did you know, whilst they are generally correct, both events rest on the actual heights involved?
Cats falling from treetop/second story heights are generally the right height for it to regain the right attitude in time... and buttered toast falling face down is prevalent on it falling from right about the height of a work surface?