Alan sits on the couch with his ex-mother-in-law, Lenore (Annie Potts) as she gets very drunk and high off pills. A little inappropriate for a babysitter.
Just when Alan and Charlie think they have their house back, they realized they're whipped by the third generation... Jake and his girlfriend, Celeste.
Charlie learns from Eddie Van Halen, in a fantastic cameo, that the artist always brings a guitar into the bathroom in case he gets inspired. What's not explained is how his electric guitar produced such an awesome riff without an amp.
Charlie and his studio friend, played by MadTV alumn Will Sasso, help Mia and her absolutely horrible voice record an album. Hey, anything to get in a woman's pants.
Jake: If drinking makes you feel bad, why do you drink? Charlie: Nobody likes a smart ass, kid. Jake: You have to put a dollar in the swear jar. You said "ass." Charlie: Tell you what. Here's a twenty. That ought to cover me until lunch
Woman [to Charlie about Jake]: You guys are really great together. Charlie: Thanks. Woman: Your wife must be proud. Charlie: Oh, no, I'm not married. Woman: Too bad. Charlie: Wow, you're even better than a dog
