If you really must, you should take it in and have it checked first. Or the best Idea world be to capture it and release it into the wild. And by wild I do NOT mean under your bed, I mean outside your house. Wild could also mean the underpants drawer of your worst enemy!. Now you should definitely capture it and release it into the wild!
EDIT: no seriously you should toss it out on it's furry rodent ass! Those things are unpredictable at best. You could very well end up with rabies from that thing! You should stick to something without rabies... like bruiser. Bruiser is cute, yes her is... YES HER IS... ahem... yeah!
Here I found this in wikipedia!
Any mammal may become infected with the rabies virus and develop symptoms, including humans. Most animals can be infected by the virus and can transmit the disease to man. Infected bats, raccoons, foxes, skunks, dogs or cats provide the greatest risk to humans. Rabies may also spread through exposure to infected domestic farm animals, groundhogs , weasels and other wild carnivores. Squirrels, rodents and rabbits are seldom infected.
The virus is usually present in the blood and saliva of a symptomatic rabid animal. The route of infection is usually, but not necessarily, by a bite, and in many cases in animals, causes the victim to be exceptionally aggressive, attack without provocation, and exhibit otherwise uncharacteristic behavior[1]. Transmission has occurred via an aerosol through mucous membranes; transmission in this form may have happened in people exploring caves populated by rabid bats. Transmission between humans is extremely rare, although it can happen through transplant surgery (see below for recent cases), or, even more rarely, through bites or kisses.
After a typical human infection by bite, the virus directly or indirectly enters the peripheral nervous system. It then travels along the nerves towards the central nervous system. During this phase, the virus cannot be easily detected within the host, and vaccination may still confer cell-mediated immunity to preempt symptomatic rabies. Once the virus reaches the brain, it rapidly causes encephalitis and symptoms appear. It may also inflame the spinal cord producing myelitis.
The period between infection and the first flu-like symptoms is normally three to twelve weeks, but can be as long as two years. Soon after, the symptoms expand to cerebral dysfunction, anxiety, insomnia, confusion, agitation, abnormal behavior, paranoia, hallucinations, progressing to delirium. The production of large quantities of saliva and tears coupled with an inability to speak or swallow are typical during the later stages of the disease; this can result in "hydrophobia". Death almost invariably results two to ten days after the first symptoms; the few humans who are known to have survived the disease were all left with severe brain damage, with the recent exception of Jeanna Giese (see below).