GymGurl, can't say I blame ya, on one level it doesn't seem fair that a visit for a great dane would cost the same as for a parakeet, you know. That glue sounds like pretty good stuff, where'd ya get it??? I could have used it on one of my cats ears not too long ago.
In another life, my ex and I bred hamsters too (evil little furballs), the dwarf russian variety. Adorable, but a mean one is a mean one and they'll cannabalize in a heartbeat ... well, that's true of most rodents, really, but hamsters can just be vicious to each other -- and daddy hamsters have serious issues.
I never had any of those problems with rats. At worst, daddy rats are indifferent, but mostly the males were gentle and nearly as attentive as mommy rats. I never had rats go totally mid-evil on each other out of the blue the way hamsters would. Never had a rat mom cannabalize, ever.