Regarding dope, they get caught. Concerning supervisors who have problems with employees, that happens everywhere.
However, your relative should have stuck around a while to see what happens during the Obama Depression.
I suspect your relative wasn't always aware of the degree of surveillance going on in postal facilities. I was once interviewing an employee concerning an operation he was involved in and next thing you know a Postal Inspector popped out of a nearby break-out door and ARRESTED the guy I was talking to.
Whatever it was he was doing he was doing it while I was talking to him. Had no idea what it was.
Please note I used plural in discussing family at the post office. My grandfather and one aunt retired from there, another aunt still works there as a supervisor and a third aunt doesn’t work there anymore. Cameras may catch what happens, but that doesn’t mean it stops it from happening. As long as the person has the right connections in management, most anything goes.
Need I mention that I come from a family of big union liberals? These folks like working at the post office and the aunt who still works there has the attitude that is what goes on in any work place. And before you say it is just the office she works at, she has been a sup in 2 states and 4 locations over 20 years.
As one who works in private industry, yes managers get complaints but not all of them on a weekly basis. Also we cannot disturb the work place with our speech, and especially cannot use derogatory, sexual and racial language- federal law demands they not allow it.