On this day, Morrie says that he has an exercise for us to try. We are to stand, facing away from our classmates, and fall backward, relying on another student to catch us. Most of us are uncomfortable with this, and we cannot let go for more than a few inches before stopping ourselves. We laugh in embarrassment. Finally, one student, a thin, quiet, dark-haired girl who I notice almost always wears bulky, white fisherman sweaters, crosses her arms over her chest, closes her eyes, leans back, and does not flinch, like one of those Lipton tea commercials where the model splashes into the pool. For a moment, I am sure she is going to thump on the floor. At the last instant, her assigned partner grabs her head and shoulders and yanks her up harshly.