I'm afraid I probably wouldn't but I don't think that makes me a bad person - I rescue small animals and take any seriously poorly animals to the vets and my own pets are regulars at the local vets!! But (as others have already said) I'm not 100% convinced it would be in the mouse's best interest to put it through the stress of an operation it doesn't have a fantastic chance of surviving.
Having said that I've yet to face a poorly mouse so you might want to check back on me in a few months / years time
Having said that I've yet to face a poorly mouse so you might want to check back on me in a few months / years time