The next day, Biff got up and got dressed. He made extra sure that he put on normal underwear. He headed out to the street, got in his car, and drove to school. He noticed other students pointing and giggling at him as he drove by; Biff tried to remember who they were, so he could take revenge later by making their lives hell. After all, he was still the captain of the basketball team, wasn't he? One embarrassing day wasn't going to change the fact that he was good looking, athletic, and popular. The rest of them were still going to be losers, and nothing was going to change that.
Or so Biff thought.
Everything seemed normal until just after lunch. Biff spent the morning sitting in the back of his classes, making rude comments under his breath, and shoving kids' heads into their lockers between classes. His basketball buddies were wise enough not to mention the "panty incident" at lunch, and it seemed that the giggling was dying down by the afternoon.
Until math class. Biff's teacher called him up to the board to answer a question in front of the class. Biff swaggered up to the front of the classroom in his usual arrogant, overconfident way, planning to make a joke of the whole thing if he couldn't figure it out. He stepped up to the board and get ready to write, when suddenly he felt a warm, damp feeling that he hadn't felt for over ten years.
Biff looked down in horror to see a dark, wet spot spreading from his crotch. He was pissing his pants! He tried desperately to stop his bladder, but it was like he had lost all control. In seconds, mutters arose from the classroom behind him, and in seconds more, the mutters turned to giggles, then outright laughter, punctuated by cries of "GROSS!" and "OH MY GOD!"
Biff didn't know what to do, so he started writing his answer on the board. He felt the warm, damp urine running down his pants and into his shoes. His shoes filled up and started to drip onto the floor. The teacher was yelling at him and the class was in absolute chaos. Finally, after what seemed like an eternity, Biff's bladder was completely empty.
He turned around and headed back to his seat, shoes sloshing and dribbling drops of piss onto the floor behind him. He sat down in his seat with a wet sploshing sound, and tried to pretend that nothing had gone wrong. Biff spent the rest of the day wearing wet, stained pants, and they were barely starting to dry by the time he got home. It never even occurred to him to change his pants.
By the time he got home, he was in a red rage, and decided that someone must have drugged him or something. Biff was as mad as he'd ever been in his life, and he was out to get revenge.
