You have all already convinced me a rat is the way to go! I had no idea mice smelled worse, were more hostile, etc. It's good to know!

If I do decide to get rats (it's more an issue of whether my mom will allow my cat, Mouse, to stay in her bedroom, due to the fact that Mouse would harm the ratties), I'll for sure be getting a pair. I understand some do successfully keep one, but they are social animals, and I think it would be better, overall, to get a pair.

The only question I've been having problems with is male or female? I've decided on male (generally more calmer than females), but they do have a heavier scent due to territory marking (yes, I know, neutering them would fix that), but finding a good rat vet may be difficult.

Thanks again to all!