it's still an animal. They deserve it.

I had to take a tiny lizard (fence lizard) just 4" long to the vets, take a mite sample and treat him for a couple of months. this lizard cost me nothing, and is'nt worth much but i'd never leave an animal to suffer.

i had to have my mouse put down two weeks ago.

good luck with yours!! Your so nice to do this for you mouse, most people would'nt bother.