Leo aggressively pushes Bob into the lake, Leo's wife Fay forces him to apologize, which he begrudgingly does. She then invites Bob to dinner and he accepts, believing Leo's hostility against him are either accidental or part of his therapy. After dinner, a thunderstorm forces Bob to spend the night. Bob stops touching everything with tissues, showing some progress in overcoming his germaphobia. Leo wants Bob out of the house early the next morning before Good Morning America arrives to interview him about Baby Steps. The TV crew, oblivious to Leo's reluctance, suggest having Bob on the show as well. Leo humiliates himself during the interview, while Bob is relaxed and speaks highly of Leo and the book, inadvertently stealing the spotlight. Leo attempts to have Bob institutionalized, but Bob is soon released after befriending the hospital staff and telling them therapy jokes, demonstrating his sanity and showing that he has made real therapeutic progress due to his time with Dr. Marvin's family. Forced to retrieve Bob, Leo abandons him in the middle of nowhere, but Bob quickly gets a ride back to Leo's house while various mishaps delay Leo. Returning after nightfall, Leo is surprised by the birthday party Fay has secretly planned for him and is delighted to see his beloved sister Lily. When Bob appears and puts his arm around Lily, Leo becomes enraged and attacks him. Bob still remains oblivious to Leo's behavior until Fay explains Leo's hatred for Bob, to which Bob finally understands and agrees to leave. Leo breaks into a general store, stealing a shotgun and 20 pounds of explosives and kidnaps Bob at gunpoint. Leo leads him deep into the woods and ties him up with the explosives, calling it "death therapy", and returns to the house, gleefully preparing his cover story. Believing the explosives are props as a metaphor for his problems, Bob applies Leo's "Baby Steps" approach and manages to free himself of his restraints and remaining fears; he reunites with the Marvins and praises Leo for curing him. Leo asks Bob where the explosives are and Bob says they are in the family's vacation house, which promptly explodes into flames, much to the Guttmans' delight. Petrified, Leo is rendered catatonic and institutionalized while having his medical license revoked for attempted murder. Some time later, Bob marries Leo's sister, and upon their pronouncement as husband and wife, the still-catatonic Leo