Undoubtedly, T4's apartment is the most uninhabitable place on earth. Science has yet to solve the quandary of how this man is capable of surviving such perilous conditions.
Yes, T4 uses this microwave to cook his meals. As you can see, he not only permits splattered food to remain and crust over in a way that even an electric sander could not remove, he also leaves those cellophane covers from the top of his frozen meals for them to adhere and become a permanent part of the microwave.
This is but a small portion of T4's shower. A panorama shot of the entire bathroom would destroy any sane person's appetite so I have chosen to save you all from such terror. The lab results have not yet come back, but I am to assume that the black growth is some kind of mold or perhaps algae. Unfortunately, the ducky was immedicable.