Totally agree with everyone who says remove dividers, or safely secure, run them on, and shut the door and go....and keep going.
We had to pick up a colt who was basically unhadled, his companion had died and he was all alone. We managed to get him the shelter, and eventually into the trailer...stock type, had my gelding in the front section. Once he was on we were moving, and just kept going the two hours to home...stopping is more stressful than keeping rolling if at all possible, and you certainly don’t want to be opening doors on route,
“Never attribute to malice that which can be attributed to stupidity”