When Spongebob is telling Sandy that he fought Jack M. Crazyfish on his way home from work, he enters the sequence without his work hat on. Then when Jack M. Crazyfish leaves crying, Spongebob is wearing his hat.
Karen bought Plankton a Krabby kid meal. There was a Krabby patty in that box but he just crushed the box and kept the toys. He finally had a Krabby patty and didn't even realize it.