You start the cart moving again. He stops it, but he’s already shaken. He looks back at the box.
“Got to find a way. Maybe if I can’t get the box to the cart, I can do things the other way around.”
He takes the cart closer, and turns it on its side. Then, with some effort, he shoves the box into it. After that, he pushes the cart until it turns over again.
“Ugh, even doing it that way sent my back through at least three of the hells,” he groans. “Now I’ve got to get this out of here.”
He glances at the cart again, then pushes it down the road. There’s enough of a slope that it keeps going.
Which concerns you. He’s probably not worried about it colliding with anything as long as it’s out of his sight. But it could do considerable damage. So you follow it to see where it’s headed.
Seems to be headed for the mill tower