We have mice.
Not on purpose. I would love to have mice as pets, but I live in a house with a terrier and four cats. The terrier and two of the cats are excellent mousers. We found this out at about the same time we found out we had mice.
You know what's not cool? Nearly stepping on a dead mouse that's in your bedroom doorway.
You know what's even more not cool? Finding a mouse with its tiny feet chewed off. Or finding just the head of the mouse.
You know what is the most uncool thing in the history of uncool things? Thinking your cat has a dead mouse in his mouth and finding out the hard way that the mouse is only playing dead and has just bitten you.
It was on that day that I learned that my tetanus shot was up-to-date, teeny little field mice generally don't carry rabies, and that telling a doctor and/or nurses you've been bit by a mouse will get you some really strange looks and a lot of questions like "how did you manage that?" and "in the city?!"
Fortunately that issue was resolved with antibiotics and a cat that eventually re-captured the mouse and ... well ... that might have been the severed head. I like to think that my cats have a sense of justice.
Several of the mice were caught humanely, in a no-kill trap, and released far, far away from our house. Near a Dumpster(tm) by a Dunkin' Donuts. (Feast well, little mousies!) Some of the mice didn't fare so well (see decapitation, above). They were humanely thrown away. (I would bury them, but... Terrier.)
The number of mice we've seen/they've caught has dropped off dramatically, but not entirely. I blame the constant rain and the incredibly warm winter. The mice are probably reproducing like crazy, and getting flooded out of their mouse-y houses.
Honestly, having mice in the house doesn't really bother me that much. I would be more bothered if we had a problem with goats. Although that'd be a lot more fun to talk about. Probably easier to trap, too.