10. Stock Car Races

Complete story — includes the ending

Hal sneaks the boys out of school and takes them to a stock car race. Bored, the boys try to sneak on the pit lanes, causing them to be sent to the security guard's office, where they run off with Hal. At home, Lois' hunt for her lost paycheck unearths incriminating items that Hal and the kids have stashed around the house, while Malcolm's teacher comes over, sparking a friendship as she helps Lois look. Meanwhile, fed up with Spangler and his noisy dog that all the cadets hate, Francis sneaks a large snake named Otis into the academy and stashes it in his locker. The snake soon escapes and eats the dog, resulting in Spangler punishing all the cadets, but they are too excited about the dog being gone to care.