Guess What's Coming to Dinner? (S05E03)

With Billy's parents away on their second honeymoon, he finds himself in a tight spot when he has invited Principal Goodvibes for dinner, hoping to secure a recommendation to Rollington Academy for the Gifted. To cope, Billy's dad suggests he enlist the help of Eris, the chaos goddess, and Hoss Delgado, a ghostly exterminator, to play the role of his parents. The evening quickly spirals out of control as Delgado frightens Goodvibes and Eris unleashes hordes of enormous alien zombie lobsters. In the end, Goodvibes reluctantly agrees to recommend Billy, only for Billy to discover that Rollington Academy is a military institution.