Professor Tickling College Jock

You've sat through class after class with the most boring professor on campus, Richard Lennox, demonstrating the effect foot tickling has on the human nervous system. His latest "volunteer," Toby Springs, is the captain of the swim team. Are his bare feet supposed to be less sensitive than Professor Lennox' other students in bondage, while he's tickling their feet with fingertips, toothbrushes, and feathers? Or is the biology professor just working his way up the food chain?