Honey, I'm Going to Teach You a Lesson

S2 E17: Amy's high school science teacher abruptly takes early "retirement," so Wayne volunteers to substitute until a replacement is hired. Enthusiastic about sharing his love of science with eager young minds, Wayne quickly runs afoul of the class troublemakers. When his second day isn't any better, Wayne invents something to help -- Szalinski Charisma Spray. Just one spritz and he's a great teacher, brimming with self-confidence and irresistible to everyone but Amy, who would prefer to see her dad back at Jentech. To achieve her goal, Amy modifies the Charisma Spray formula from alluring to obnoxious.