I gotta say, listening to the old guy video I didn't hear a Cop gleefully roughing up an old guy, sounded more like a Cop not knowing what else to do but apply force. Maybe he had no options I dunno.
And there is the problem. I remember well the day the Des Arc city police detained us for a while for riding in the stock trailer with some pigs. Lost the insert in the trailer gate on the way home from a sale, and one bred gilt had already fallen/jumped out. Scuffed her up and she later aborted the pigs, but she lived. Policeman did not like us acting as a gate. Took over an hour to convince him that we had no option. miles
Dropping a pig in the road will make anybody following a trifle nervous.
