I wonder how much of it is because people start out wanting to not do anything too big because they feel like they could be confronted about it at any second an

I wonder how much of it is because people start out wanting to not do anything too big because they feel like they could be confronted about it at any second and that just becomes the norm. Random screwing around is easier to justify as a temporary thing you were caught in than some other activities. If you had a work area and it's been turned into a study area for your BAR exam prep with books and papers spread all around, that's a bit harder to explain away as them just coming at a bad time than you watching cat videos would be.