LOL! Apparently, the former police chief of Boston had a method of dealing with protesters in the 60s.
He would have the officers bring in the police horses first. When there was a sufficient supply of manure in one location, they were moved away.
When it came time to carry off protesters, who had been taught to let themselves be dragged, the arresting officers made a point of going through the manure.
It changed the compliance level substantially. You only had to see one person dragged through the horse manure once before you figured out what was in store for you.
LOL!!! That is great!! I love it.