Dan gets into a full-blown yelling match with a nosy neighbour over sidewalk parking, complete with Hannah stepping in and threats of running people over. Meanwhile, Meg puts Dan's intelligence to the test with a "Quiz for Dummies" to redeem his math abilities from last week, featuring a lifeline call to Clint and a very confusing riddle about cats and mice. Plus, the team tracks down an old booster math classmate, and the studio text machine gets flooded with NSFW insults.