This is completely mental, right?
I always cringe when I walk into the restroom and see dudes with their pants around their ankles just sitting and shifting about on that nasty tile floor. THE FLOOR IS FULL OF VILE WASTE, do they not know this?
General rules acceptable contacts in public restrooms:
souls of shoes to bathroom floor
elbow to nudge open stall door
butt cheeks to toilet paper or protective paper
hand to toilet paper
pinky finger to faucet
palm to soap extinguisher
hand to paper towels
THAT IS IT, nothing else should touch.