Love them as pets, but not feral/wild ones when they are in my kitchen cupboards urinating and defacating in my pots and pans!
Always wanted a rat as a pet when I was a kid, but my dad is seriously phobic so it never happened.
We first got a cat (Radar) due to horrendous mouse infestation, that's not as bad as it might sound because we love all animals and we would be dedicated towards giving any pet a really good life and loads of attention, but the mouse situation was what did it. I used to rent a flat with a bad mouse problem and letting the neighbours cat into my flat (with their permission of course, and oh he was a lovely lovely cat to spend time with too!) sorted the problem out.
They don't worry me as long as they aren't nesting in my saucepans or wardrobe or eating through the sofa (my friend has mice nesting in his sofa at the mo), but when we were infested Nate used to scream when he saw one
(hope he doesn't see this thread!)
So yeah in brief, as pets good, as household pests not so good!