It will discover that it has been doing everything wrong. The next day, you will see a nice large cage arrive and you will be moved into a lovely new abode, complete with climbing aparati, such as wooden ladders, rope, and dowels. Your new abode will probably have at least two levels. Demand that you be given cardboard to chew, tissues to shred, wooden blocks to chew, a hammock to recline in, and various toys to amuse yourself. Again, you may have to go on strike to get exactly what you want.
Proper food is another matter entirely.
Some humans think they can just dump in the leftovers and be done with you. First of all, a diet too high in protein can cause unsightly blemishes to appear on your skin. Do not let your human become a slovenly feeder. You should be eating a nice grain mixture or a high-quality lab block such as Teklad. And make sure your human knows that you demand fresh veggies and fruit from time to time.