From conversations with family who are or were employees of the USPS, I’d say the biggest dangers to USPS workers is from other USPS workers. The place is full of drug dealers, drug users, lazy feather-bedded unionized degenerates ‘entitled’ to do or say what they please while at work and affirmative action hires drop who EEOC complaints in a heartbeat against any supervisor that actually expects them to do something productive. USPS is a pit that represents all the worst of government employment practices.
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.
I always thought that aspect of postal working conditions was great.
No doubt private sector employers are different in that regard ~ but they're just a bunch of fascist pigs eh!. .
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.(/s)