Hey, BigC, you should have walked up to the engine, and slapped that hogger. I never shove a guy, riding on the point, without at least a minimum on the train. Only if we are shoving up a good grade, will I not have that air applied. Good idea not riding that rail car, as steel slides very easily. That construction debris is like ground sheetrock, lumber, etc, and it is packed in tight. Loose stuff might blow away, but that stuff does not shift. You could ride the inside of a drop end gon, just stay towards the center of the car, well clear of any moving parts, or ones that COULD move. I might have to work a little harder, to shove against the air, but I never would chance "launching" the guy on the point, unless I had a serious grudge against him, and even then, I would rather give him "spaghetti arms", than to risk running him over.
Moveable/shiftable loads are to be respected, but there are ways around anything. I have ridden the top of many a train, on covered hoppers, tank cars (LPG or ammonia cars, with the full length catwalks up top) even pigs. We used to store empty pigs, at Reed Valley, when there was no more room at SK. I caught a job picking them up, once, with a cool guy who said "once I close the switch, just start pulling, but keep 'em under 30 mph, until you see me again". He closed the handthrow, and walked across the table tops, while we were pulling back towards the NJCT. He didn't mind walking those cars, and I enjoyed watching him do it, on a 3/4 mile long empty pig train. He was an "old head", and seemed quite at ease, with the jump, from one car to the next. Saved him from walking the ballast, up to the head end, as we were sitting on a crossing, once we cleared the switch.
Made the day a lot shorter, as well. Regards