Ms. Muffin likes to push the envelope with her pranks. Muffin pretended to be a mother, who had kids eating food from a grocery store without paying. This led to a confrontation between the kids and Muffin, which ended in an all-out brawl. Fortunately for the family, this was all a prank. However, the store wasn't in on it and likely suffered from the damage caused in the stunt.