I had loads of rabbits as a kid, with imaginative names like 'Snowy' (I had 3 of those, over the years), Smoky (guess what colour) and Blackie (there's a big clue there). I loved looking after them, I really did.
But some friends now have rabbits ('for the kids') and seeing the poor little buggers locked in a hutch (rabbits, not kids, although they do get our for a run) I was a bit whelmed (not overwhelmed, just 'whelmed') by a sense of cruelty... I couldn't have one now... same with caged birds... coudln't do it.