I've never dropped a set of doubles. But I've made many, many mistakes back here. But, I can say, all of my mistakes have been in the yard. I'm all business on the road. Once the wheels start turning, I don't pluck around. And the Upstates of the UPS world can kiss my brown ass, I drive at my speed. No supervisor will dictate my speed for me.
Sounds like you've got a bunch of touchy old foogies around you. When I dropped my last trailer, drivers came out of the dark to help me crank those legs in low gear. The first laughed, and told me about the time he dropped his trailer in a driving snow storm, all alone, in a rural center. The next guy came and told me he was afraid I was going to have a heart attack. Both of them laughed at my embarrassment, and told me that it happens to everyone.
Some here say it never happened to them. They're the really good ones, because it happens to most of us.
What I would say, is when you're hooking up, if you're talking to another driver while you're doing it, stop, and check everything again. Talk will distract you. Make sure it is only in the yard when it happens.