Luke, still slurping coffee and studying flash cards, passes Adam on the stairs and decides to intervene. Oh, God, this should be weird. He asks, "Do you know who I am?" Adam studies him like it's a trick question and replies with uncertainty, "Luke Girardi?" Luke is aware that Adam knows his name, and asks, "Do you know what we have in common?" Adam: "Um...we're in AP Chem together and...we're both guys." Luke: "Yes, yes! We're both males. We're not females." Adam looks around like he might be on Candid Camera or something. Luke continues, "And as such, we find females difficult." Adam: "O...kay." Luke: "One girl in particular." Adam's not following. Luke says he's Joan's brother. Adam knows. Luke: "I would like to speak to you on her behalf." Adam's listening but not following at all. Luke: "Okay, you're not gonna help me through this at all, are you?" Adam: "Through what?" Luke: "Maybe it's none of my business, but I know what I know, and I can't un-know it, so I'm trying to help." Adam's tired of this and walks away, saying, "She smashed my art, man." Luke follows him, saying she's really sorry about that, but that he has to get past it. Adam would like to know why. Luke: "Because one smashed sculpture looks pretty small given other upcoming issues you guys have to face together." Adam: "What happened, happened, okay? There's no taking it back. She has to deal with the fallout. I'm out of her life, man." He wanders off, leaving Luke looking like he's not especially impressed with his sister's taste in boys. Speaking of which: I know Adam is the more likely suspect for father, but how does he know it's not what's-his-face, KleptoBoy...Clay? It easily could be.