Ryan: Y'know what I like about rich kids? * decks Luke* Nothin'.
Sandy confronting Dean Hess, and threatening to reveal evidence proving that he's been having an affair with a student (without having any). Hess, who's been a smug snake, looses his cool and although it's clear he's enraged when told to let Ryan back in, it's clear that there isn't a goddamned thing he can do about it.
When Kaitlin discovers Dr. Roberts is cheating on her mother what does she do? She manages to get him kicked out of his own house.