Invention of the week: Charisma Spray, K9 kleanser, and the Time Hopper
Wayne teaches Amys science class after the regular teacher runs from the room shouting hell never come back. Amy is devastated at having her father there. Wayne comes up with a formula that gives him charisma. Amy attempts to sabotage the Charisma Spray but ends up mutating the formula leaving her father an obnoxious jerk.
Diana and Nick spend much of the episode trying to give Quark a bath. In order to escape, Quark even uses the Time Hopper to disappear.