Just as Milo has finished ridding his apartment of everything that belonged to his ex-girlfriend Lisa, a plumbing accident forces him to temporarily move in with Tyler. Having never had a roommate, Tyler is happy to have him stay for as long as necessary. He does have one rule, however: under no conditions can Milo enter his private bathroom. Meanwhile, as he's photographing at a new hotel for the magazine, one of Gibbs' pictures inadvertently catches Neal's girlfriend Amy arm-in-arm with another man. And while Tyler and Milo agree that they shouldn't tell Neal until they know more, they aren't sure that Gibbs can keep a secret. After noticing a host of things that are broken in Tyler's apartment, Milo calls in the building's superintendant Pavel to fix them. Though Milo has kept his promise and avoided his friend's bathroom, Pavel insists he take a look. And after seeing his friend's spectacular toilet, it isn't long before Milo is using it whenever Tyler is out. Wracked with guilt, he tries to confess, but can't bring himself to spoil Tyler's excitement over having him as a roommate -- especially now that he wants to make their new living arrangement permanent. Meanwhile, when Gibbs tries to come clean about Amy's suspicious behavior, Neal misunderstands what he's talking about and says that it's no big deal. Yet when he realizes his mistake, Neal is left reeling by the thought that his girlfriend might be cheating on him. Determined to learn the truth, Neal heads to the hotel to ask about the man Amy was seen with. When he spots him with another woman, he calls Gibbs for some tips on handling himself in a fight. However, when Amy drops by the office and Gibbs accuses her of cheating on Neal, she reveals that the man at the hotel is the piano player she is hiring for a surprise party for her boyfriend. Asked why they were walking arm-in-arm, Amy reveals that he's blind. And although Neal ends up losing his fight with the blind pianist, Amy is still impressed by his passion for her. After Tyler catches him using his bathroom, Milo has no choice but to pack up and leave as soon as possible. But when Tyler realizes how lonely the place is without him, he asks Milo to move back in and even installs a matching toilet in the guest bathroom. © 2012 Sony Pictures Television Inc. All Rights Reserved.