I got my first cat due to a baby, but it wasn't because the owners didn't have time for it. Basically each of the couple already owned a cat before they got married. Her cat terrorized the cat I ended up with. No joke. They originally had a spare bedroom and would keep one cat in the bedroom and one loose in the house at any given time, switching on and off. Then she got pregnant, and they needed the room for the baby (without the hellacious cat locked in with it). Since Clementine had always slept in my room when we all shared a house, they called to see if I would be interested in taking her.

Oddly enough, the cat they still have has calmed down immensely since the baby was born, but he's also about 13-14 years old now.