In the next set of clips, we see Luke continue with his drinking - and also, we see another actor playing Luke's friend Kevin. Even when Kevin looked like someone else entirely, Luke was protective of him, and wanted to keep him from getting into trouble. Aw, Luke!
Also in these clips, we see Luke actually use physical violence against someone, and, as always, he's a mean and pretty irrational drunk. Lucinda continues to deal with her cancer story-arc. Keith hides Luke's drinking from Lily and Lucinda, and blames his black eye on walking into a wall. Always a convincing story, y'all. But Lily buys it, so! Lucinda calls bullshit, but she's no dummy.
Luke stays in character by immediately apologizing, as he always does, to the person he hurt. In this case, Keith. Unlike some people who shall remain unnamed - Luke's never had a problem with admitting fault.
Click to view
http://youtu.be/C2jYM33aLh8 Click to view
http://youtu.be/DAZozHJF3i4 Click to view
http://youtu.be/UqJx7Kaw4X0 Click to view
http://youtu.be/I_fKzLcm3Yg Click to view
http://youtu.be/hNEY5KoB-10