Another way to say it is that they'd rather get an extra 15-30 minutes of work done. Because if enough people start going home 15-30min early, management gets

Another way to say it is that they'd rather get an extra 15-30 minutes of work done. Because if enough people start going home 15-30min early, management gets excited and raises the bar by adding work, so now you do the extra 15-30min of work (by peeing in the bottle) or risk not keeping up. I'm sure many would prefer peeing in the bottle to risking not keeping up, but that isn't the kind of choice where we say 'great, let them do it, it makes them happy.'