Your new mouse is straight out of the laboratory. From a long line of test-mice, infected with various virii, and only interested in anything with the scent of cheese emanating from it, your mouse is the less-than-ideal pet.

I would like a new pre-furnished home.

Side note:
In typing that sentence I just learned that my Windows 7 auto correct system thinks that pee-furnished is an acceptable word, and pre-furnished is not.