I believe there is one celeb that has a couple of monkeys and a sloth that are well taken care of, but I don't remember who it is. Some rockstar, I think?
Speaking of irresponsible ownership though, I remember seeing an ad for some house-flipping show, and one of the women just up and stated, "If I want a monkey, I'll buy a monkey" and in the next clip was riding around with a monkey in a little skirt. Stuff like that gets to me - by no means, is that responsible, and that is what gives people a bad name.
Fatal Attractions gets to me at times, because even though the majority of the people are irresponsible, they tend to make entire groups of animals (that aren't cats, dogs, or hamsters) look dangerous. A dog can kill you, and is likely to be aggressive if it isn't trained, fed or properly cared for, but the chances of a random dog killing his owner are unlikely.
I remember the one episode, which was about reptiles I believe. A man was bitten by a monitor, died from the infection, and was eaten by his lizards, which ran loose in his house. If you properly treat bites, your chances of a monitor (or similar lizard) killing you are slim to none, and letting them run loose is irresponsible and not common - but the show seems to act like they're ticking time bombs, and that most owners let them run loose. Previews for a new episode show a python that likely was underfed and had free range of the house, that "tried to eat" a young girl; this could have been avoided, if the snake was properly enclosed and cared for.
Reminds me of a friend who I had when I was 15-16. He had a rosy boa, which was no where near the size that it could eat anything even resembling a human. After a few MONTHS (he was too lazy to buy a rat) of not feeding it, his little sister (6 or so at the time) opened the cage, was bitten, and the snake wrapped around her arm. He was able to quickly get it off, and she didn't have any serious injuries, but rather than call it an accident and take better care of his pet (keep the cage locked/where she couldn't get in it, and feed it more regularly), he took it out back and killed it with a shovel, and there after thought all reptiles were evil, ticking time bombs.
I think that is always the worst part, how the owners of these animals tend to flip on them when some accident happens, even if it is their fault. It never is, "I messed up!", it's "Oh, the animal WAS vicious, man, I was dumb for keeping it!". No one can take responsibility.
They had another episode where a man was keeping an untrained, unsocialized hyena in his apartment (along with tons of other animals) and had his arm broken by it, and one where a man was attacked by a domesticated bull that he knew was aggressive but still handled alone. Both of them more or less decided that no one should own anything potentially dangerous, because sh** happened to them.