It's true that Phoebe did become a total bitch, although Rachel was never above taking a few cheap shots at Ross and Chandler. And Phoebe's bitchiness WAS funny: "Are you leaving The Supremes?" "Chandler?" (Call centre job- guy hates his life). "Okay, Byeee" (pushing Chandler out as he's saying goodbye to Emma). Just remembered the first time I watched the Smelly Cat video in season 2- I swear I belly-laughed for a full 10 minutes.