Manny puts a bet on the Grand National for Bernard, who says he's not interested in gambling but immediately becomes addicted, and has to exploit Fran and Manny so he can replenish his dwindling funds

It's Friday night. Manny and Fran want to go out. Bernard wants to stay in, get drunk and ignore his friends. And if Manny dares to use 'party' as a verb, Bernard won't be responsible for his actions.