How does one not get the hang of being a feeder driver?
You do, but the driving part of it, and the hooking up and breaking down equipment takes time. The driving takes many months to get comfortable. It's just a complete different animal then any kind of driving you've ever done before. And the hooking up, well, when I was new I would get hooked up, and would get back out just to make sure I didn't forget something. It is amazing there isn't more problems when new feeder drivers get on the road, due to having only five days of feeder school. Five days of school is woefully inadequate.
Having said all of that, I don't want to be too hard on this guy--God knows I've had my share of boners--but leaving with the backdoor of a trailer open is a head scratcher. I mean, every trailer has to be sealed before going on road, which means the door has to be down first. And the pre-trip is part of checking the back of the trailer, lights and everything, before heading up the passenger side of the trailer. Not having that door down, and the chain latched with the seal through the chain, well, you can see how this is a complete hole in your procedure.
I haven't read through everything here, but your five days in feeder school doesn't count towards your seniority, BUT the five days after, when the sup rides with you, that starts the clock. It does here anyway. You are, after all, doing bargaining work, even with a suit riding along.
To the OP, I would say this: it sounded like you were in a massive hurry, to leave somewhere with a back door open. NEVER get that kind of hurry. There is nothing you can make up by being in that big of a hurry. The pre-trip, on all of your equipment, isn't a thing that can be done in an "going through the motions" way. It is as important as anything you do behind the wheel. Never, NEVER rush your pre-trip. In feeders, there is a sixth sense of knowing when something isn't right. You can just feel it. This could be a result from rushing too much, or it could be from talking while hooking up. You gotta pay attention, man. And although the length of feeder school is too short, the real school is what you learn from the other, more experienced drivers. There are no stupid questions, and you'll find that almost all feeder drivers are more than happy to help you out when you don't know something.