Aha! Thus Spake Zarathustra!
At first I thought perhaps you didn't like the white tennis shoes cause of the lack of hackle, fur or mask, or any sort of useful material it lacked from which you could dismantle it to fashion a nice Van Nuys Stimulator....but now the truth comes out!
But as it turns out, I am inclined to believe your bitter rejection of my yuletide gift stems from the fact that these squeeky white medical shoes remind you of bad memories of the "caregivers" at this place:
http://www.youtube.com/watch?v=_HZq62nqE78
Mea culpa mein freund...