Married with Children - Season 5 Episode 16

When a second floor aerobics studio, full of terribly overweight women, collapses into the shoe store, Al is laid off while the store is being repaired. Al then gets a night job as a security guard at his old high school, Polk High. This prompts his former high school rival, Spare Tire Dixon, to steal his prized trophy which leads to a brutal showdown.