Haha, well I guess that would depend on the job. Bad sex is still sex, but can really put the nail in coffin for the day. If your job is like a model or a pro athlete, or some job where you don't want to slam your head off your desk, then I would pick work. If your job consists of a full body suit, rubber boots, and a shovel, I would choose bad sex. Unfortunately for a guy, bad sex can really bruise the old ego.