In the last episode of Season 2, Sam and Max watched Girl Stinky turn into a cake. They had to get a rib from the monster to turn her back into a person. Well then in the last episode of season 3, it is revealed that Girl Stinky wasn't really a cake. It was all a way to trick Grandpa Stinky into giving her the diner in his will. This is my question. If the cake story was just a trick, how was Sam and Max able to turn the goldfish into a cake and trick the Soda Poppers?