I will have to admit to doing that at times. But then, I work 2 jobs and attend graduate school, so there is rarely anytime that I am not either at work or school. Right now, I am at home, but that is because nasty weather has cancelled undergrad classes, so my students are not on campus. I also have a flexible schedule. Some days I don't go in until 12:00pm or later, but am on campus until 9:00 or 10:00pm. On the weekends, my hours are 8:00pm-8:00am. I noticed that it was questioned in another thread regarding the times of specific postings, and wondered why teachers, specifically, were not teaching instead of posting. I thought then, that without knowledge of individual schedules, that was an unfair an inacurate judgement to make. We don't all have 9-5 time schedules.