After getting paired up with total strangers for the semester on 'Community' (Thu., 8PM ET on NBC), the gang went to the professor to convince him to allow them to pair up with one another -- because two goes into seven evenly (if you don't count Pierce, which they never do!).
That brought Todd into the loop for the duration of the episode, as they started fighting amongst themselves over their pairings. When they call themselves family, they mean that in the most loving and dysfunctional way possible.
By the time they'd reached their fever pitch, with Britta burning the results of their poll that saw Shirley rank as less popular than Pierce in the group, it was enough to horrify Todd.