i'm not going to mention any locations. One night, a long time ago, i was out of route and made a stop at a terminal that had an armed guard. I didn't know that the terminal had an armed guard until i saw his loaded holstered 357 lying on the table. I was there a good 10 minutes before the guard knew that i was on the dock. At another terminal,early early one morning, i opened the entry door to the dock and a piece of pipe fell on the concrete floor. I jumped a foot off the ground and then jumped again when an employee came out of the office with a pistol on his hip. The pipe was positioned to fall if the door was opened. Pretty effective warning system.
Merry christmas to all