The Unstoppable Yellow Yeti - Season 0 Episode 10

While building snowmen, Rita and Osmo both get hit by snowballs with them suspecting that one of them started it. Two more snowballs were thrown and they now suspect Gustav as the thrower. Both started throwing snowballs at him and loses his sandwich. The trio is now dueling with each other, and started the fight when Gustav roared. They are started getting tired however, but it actually an anthropomorphic tree that was making the trio have the argument.