Yin! Yang! Yo! Episode 38 - Yin Yang Carl / Smorks >Master Yo has to go to a responsible parenting meeting and leave Yin and Yang at the dojo. He warns Yin to not take in any pets. But when Yin sees a bunch of seemingly harmless green creatures called the Smorks, she decides to take them in and protect them from Yang. But Yang thinks that the Smorks are harboring a dark secret and actually aren't that innocent.