Scooby-Doo 2: Monsters Unleashed/Funny

"Shaggy: We have... to remain... calm. Scooby: (screams in fear) Shaggy: CALM, Scooby-Doo! You're not being CALM! Scooby: (slaps him) Shaggy: I needed that! Scooby: (slaps him again) Shaggy: I needed that, too! Scooby: (punches him) Shaggy: You're pushing your luck, Scoob!"
 * While Scooby and Shaggy are surrounded by costumes of previous monsters that have been brought to life.


 * Or how about when they encounter a monster that they're not afraid of: the Cotton Candy Glob. The monster's Oh Crap is completely understandable.