Karen stood in the corner of the filthy old bathroom at the gas station on the edge of town. It was 1:00 AM so it was after hours, barely any cars driving by on the highway thats very busy during the daytime. She had arranged to meet with a new sub that had responded to her ad on craigslist. Karen wasn't new to this spot, she had taken a few of her subs here in the past. But this was the first time she would meet a new sub here. She waited patiently for the special knock she instructed her to do so she would know it's her. Karen loved this spot for it's filthyness, it never seemed to be clean. The walls a dim yellow tile, the floor dirty especially by the urinal and around the toilet, the sink a dim white from never being cleaned, the garbage can overflowing, the lighting dim, cobwebs in the corner, the toilet seat up with stains around the rim. She heard what she thought to be a car door closing and stared at the door intently, waiting for the special knock.