Not really paying attention to what he was doing, Jon put on a pair of underpants that weren't his and then proceeded to put on a muscle shirt that seemed a little baggy on his thinner body and a pair of jeans. Lastly, he put a pair of sandals on his feet. Then he left the locker room.
A few minutes later, Biff Meadows, dressed in a school gym outfit, which was issued to every student, went to his locker. Opening it, he discovered his clothes and other possessions were gone. But instead of freaking out, he developed a glazed look in his eyes. Was this his locker? He was certain this was Biff Meadows' locker ... but was he Biff?
Numbly, he went out of the locker room, still in his sweaty gym outfit, into the halls, and saw someone else in Biff's clothes with Biff's friends. Then he began to walk without knowing where he was going.