George puts it out and explains to the manager that the busboy, Antonio (David Labiosa), left the menu too close to a lit candle.
Instead, Antonio tells him that there was a gas line explosion at the restaurant that killed five employees, including the busboy hired to replace him.
With her boyfriend still with her, he gets into a shouting match and eventually a fistfight in the hallway of Jerry's apartment building with Antonio, resulting in injuries on both sides after they fall down several flights of stairs.
The busboy loses his new job, George is forced to take care of the cat, and Elaine's boyfriend is bedridden at her apartment for several more days.
This episode was noted by the supporting cast in an interview used for a DVD set as the first sign that Jerry would be a generous writer, being very good about including the co-stars into simultaneous story lines.