The Agreement Dissection (S04E21)
After Leonard spends an excessive amount of time in the shower with Priya, Sheldon accuses him of violating their roommate agreement twice. However, Priya cleverly uses her legal expertise to dismiss the charges, frustrating Sheldon. The guys soon exploit Priya's skills to score some Greek food on pizza night. In response, Sheldon seeks out Penny, who invites him to a girls' night out with Amy and Bernadette. Intrigued by the possibility of gossip about Priya, he reluctantly agrees. After enjoying cocktails, the girls drag Sheldon out dancing. Later, as he helps a tipsy Amy back to her place, they encounter a cigarette-smoking monkey. Amy warns Sheldon not to succumb to Priya’s legal tactics before kissing him and rushing to the bathroom to be sick.