Sabotaging a load could have some serious consciousness. I've had my share of miserable drivers. For me as a loader, there's the pal system, and the way I do it. My drivers love it. I know what deliveries are dock, and put them in the back, I put overweights in a spot the driver can easily get them out the back, I put certain bulks on the floor, in the right order, and bury the high 7,000's and 8,000's, especially long ones, back and on the floor so they are out of the way. I always put the same address together, although they are the same pal #, not always the same address. I even put them in ascending order.
When I have a driver who is just miserable, and gives me attitude, I will load his truck perfectly and 100% to pal. Won't do anything I listed up top for him, besides over 40lbs on the floor. I've only had 2 drivers I've done that to. After a week I would go back to the way I normally load it, and both times have gotten a big fat thank you
If you aren't doing anything I listed, you should ask your drivers what you can do to help them have a better set up. If I'm on a truck where I don't know the route well, I can still at least tuck away the late in the day awkward packages, and I always keep the saver next days off to the side, so he can look through them, make sure he knows where they are, and that they all match up with what he has in his DIAD.