CatDog's End / Siege On Fort CatDog

S1 E12: Is this the end of CatDog?  Fed up with being a two-headed freak, Cat elects to have surgery to separate himself from Dog.  At Rancid Rabbit's Better Bottoms Emporium, Cat picks a new butt, but Dog decides to have himself attached to Randolph, a suaver, more handsome version of Cat.  Dog and Randolph get along famously while Cat has a hard time adjusting to his new rump.  On the morning of the surgery, Cat has a change of heart, realizing that he had more fun with Dog attached to his rear end and that two heads are more fun than one.CatDog once again run for their lives from the Greaser Dogs to the safety of their house.  However, the house becomes a fortress when the Greaser Dogs set up camp outside.  The Greasers gain entry into the house and CatDog retreat to the attic.  Running low on supplies and unable to communicate with the outside, CatDog finally make a stand, rushing downstairs to attack the Greasers.  They find, however, that  the Greasers have disappeared leaving only a note: Beat you up later.