Title: Stray. Sentence 1: Olaf hated cats and always had - until a stray changed his mind. Sentence 2: He noticed the stray hanging around his apartment building. Sentence 3: Feeling bad, Olaf started to feed it and eventually pet it. Sentence 4: Soon he was enamored of the cuddly cat!
Within a month, it was living in Olaf's apartment!