Liz Lightning (http://www.feetcore.com/liz-lightning/) oscillates unmercifully, back and forth on my face -- only showing signs of slow-down when I reach the apex of her bounce, from where she sends my face back into a familiar sine wave of oblivion during this vicious cycle of heaven & hell.

How much could you endure before having to throw in the towel?

http://img136.imagevenue.com/loc423/th_20949_slams_face_like_trampoline_123_423lo.jpg (http://img136.imagevenue.com/img.php?image=20949_slams_face_like_trampoline_123 _423lo.jpg)

...taken from this video scene (http://www.feetcore.com/movies/liz-lightning-vids---foot-domination-1.html).