Liz hesitates as she thinks about how they could destroy a game such as that, but eventually agrees.  As they walk, she feels like she should explain about why she did what she did with that girl.  But she can't come up with any good reason beyond the real one, which he obviously wouldn't believe.  So she ends up just making something up.<br/><br/>"I'm sorry Brian....I didn't mean to embarrass you with that girl...it's just... I've seen her and some of the other girls that work here doing drugs in the castle.  And I don't want you getting involved in all of that."  It's a lame excuse, but it's the only one she could think of at the spur of the moment.