On a funny side note, it's not always as easy as it looks...sitting in the drivers seat with the back of the trailer 65 feet behind you and often in tight quarters, it does take skill..but a lot of "drivers" are lacking in the skill department that can make even a dead easy backing scenario a debacle, but that's another story.
But about 15 years ago I did have a guy that lost his mind waiting for me to try to get into a particularly ****** dock from a city street. Legitimately piss poor dock obviously designed by some idiot who had never driven a truck before, cars parked everywhere they shouldn't have been, etc etc - the full gamut of difficulty. After I'd been wiggling the trailer around for a minute or so trying to make the angles work the guy I was blocking on the street had obviously had enough, came up and yelling at me and told me I should "learn to F'ing drive" and suggesting he could do a better job. I was in no mood having driven all night to get to this crappy delivery in crappy weather, so I dynamited the brakes, got out, and said "Enjoy yourself". After he got over the shock...he actually got in the drivers seat, but it became evident very quickly he had NO idea what he was doing in a class 8 tractor. He never even got it in gear much less had any idea how to release the parking brakes to get things to move.
After about 60 seconds of grinding the transmission and looking like a fool (while more people had now piled into traffic behind him while I stood arms crossed in the street) he slinked back to his car rather deflated and sat patiently for the minute or so more it took me to wiggle my trailer into the dock.
