Or perhaps the author was being subtle--toast lacks the ability and desire to _right_ itself, i.e., it cannot and does not wish to force itself to land butter-side up, rather, it has the ability and desire to force itself to land butter-side down. :-)
The wikipedia article states:
"Toast, however, lacks both the ability and any desire to right itself."
The author obviously does not believe (as I do) that there is no such thing as an inanimate object..... :-)
A variation on the Robin Hall quote would be: "Lawyers believe that a corporation is guilty until proven broke."
The buttered cat paradox (http://en.wikipedia.org/wiki/Buttered_cat_paradox) results in perpetual motion.