Cheese knows that when the water stops running in the shower, the cleansing process is complete, and the people inside the shower are now decontaminated enough to be allowed to touch him. If he is outside the bathroom at this point, he will push the door open. Cheese is clearly not a cat for the modest or easily chilled. After all, it’s HIS needs that are to be considered here—geesh!
But please!!!! Do not be so gauche as to pet him anywhere but the head and neck (OK, the occasional tail swipe is tolerated—but just once, or maybe twice. But that’s it—no more than twice). Anywhere else is just wrong, and he will withdraw his affections quite quickly if you have treated him with such disrespect.