You might be getting trolled. As a guy who used comp time fairly and honestly, if I had to leave early the next day for car repair or I left early today to attend kids school conferences or a choir concert or if I know I'm gonna VPN in tomorrow because a kid is sick today, I'll crank things up a bit and reply to emails at 8pm or whatever to show off. I wonder how many of your "hard working" coworkers posting at night left at 2 for a dentists appointment that may or may not exist or have other similar scheming going on.
