In my opionion the funniest scene was in Employee of the Month When he is going over the prizes for being the employee of the month.
Monk: Tell me about the Lobster Barrel.
Joe: It's a family place. It's noisy, there's a million kids. . . . You wouldn't last five minutes. It's got a great all-you-can-eat buffet with seven different types of shrimp--jumbo shrimp, batter-dipped shrimp, tempura shrimp. . . .
Monk: Okay, stop telling me about the Lobster Barrel.
Joe: . . . Barbecue shrimp.
Joe: Eighty-nine-cent commemorative plaque. Would you kill someone to get this?
Monk: I'd kill someone not to get that.