Send In the CatDog / Fetch / Fishing for Trouble / Fetch

S2 E1: Dog drags Cat to Clown College, where our heroes are confronted by the stern Sgt. Sillybells, who leads the recruits in Drill Sergeant manner. When Cat won't get hit in the face with a pie, the Sergeant kicks Cat out of the school. Meanwhile, Dog is sent on a mission to entertain at the birthday party of Susie Sourpuss, a little girl who never laughs.  Dog finds it so hard that he collapses. Cat saves the day by making Susie laugh, is awarded a clown medal,  and is christened "Hairball the Clown" by Sgt. Sillybells.Dog wins a goldfish at the county fair, which he names Veronica. Fighting with his instincts and losing, Cat eats Veronica. Cat dives into Dog's mouth to go and retrieve Veronica, encountering all the things that Dog has eaten recently --cotton candy, taffy, chocolate matzo balls, and hot lava chili. Cat finally encounters Veronica, who is incredibly obese because of all the food in Dog's stomach. Veronica is so ravenous that "he" eats Cat (and Dog, too!)Cat wins a radio contest, but before he can call in and claim his prize, Winslow throws a fetch ball, and a rampaging Dog tears off after it. Dog, dragging Cat, arouses the ire of The Greasers, Mervis, and Mr. Sunshine, who, Keystone Cops-like, chase CatDog to the ends of the continent. Bruised and battered Cat finally calls in and claims his prize, which happens to be hundreds of fetch balls.