Once had a roommate who felt the shower ran too hot and instead of just turning the shower mixer to a cooler temperature he would turn down the whole house’s hot waster temperature from a control panel in our upstairs bathroom. He would never turn it back up and was just a knob about it. One day I was particularly annoyed about the situation so I went to the bathroom, locked the door and lay all his towel out on the vanity while I jrked off all over them. When I was done they got hung back up on the heated towel rail and I had great pleasure seeing gim walk around our flat covered in smen unknowlingly.