Post Office Shooting

There was a shooting at a California post office facility this morning. I was thinking, why are post offices associated with shootings? What is it about the employees or working conditions that have driven employees to killing their coworkers? Is there something about the hiring practices that are looser than other government jobs, or do they have such horrible working conditions? Certainly it seems like there is a lot of monotony in the job, and customers at the post office aren't particularly nice, but is that any different than other places? It's so bad that if someone is going crazy a common phrase is, "going postal." Nobody ever "goes UPS" or "goes FedEx."

Tags: going postal, post office, post office shooting, postal service, USPS, US Postal Service