Abby wakes up at Luka's while Carter finds Susan returning from spending the night at Mark's. A dominatrix's client is brought into the ER, and she leaves a bag of her toys behind. Abby, Carter, Luka, Susan and Gallant explore in the bag, until Weaver catches them. Susan tries to take responsibility, until Weaver finds a purple dildo in her locker and sends them all to an all-day sexual harassment seminar. While waiting for the tardy instructor, everybody learns a little more about each other. Luka and Carter actually have a duel. Susan and Abby bond, while Susan has doubts about her relationship with Carter. At the end of the day, they break up and Susan tells Carter to tell Abby that he's madly in love with her. Oh, and Carter used to have Weaver's locker...