It's funny what people will try to get away with at work. A place where my DH used to work, roughly 20 years ago, they implemented a program to keep track of what people were working on. A woman who looked very industrious was recompiling the same program over and over with no changes just so she would look busy!
Another programmer wanted to teach people who did not log off their computers when leaving for lunch. He made up a program to look like a log on screen and he would run it on their computers. They would think they were logging on and the computer would sass back at them! Even to chewing them out for not remembering their passwords! They soon learned to log off!