Assault! That kid has more patience than I do. You grab my arm like that, and you’re toast.
It is better to do as the young fellow did though, the congressman appears to be a possible alcoholic and may in fact have brittle bones. Knocking or throwing him down might send him to the emergency room and garner him all sorts of sympathy.
Of course I might have reacted the wrong way myself in that instance. He appears to be a tall thin man, probably close to my height and eighty to a hundred pounds lighter. If he grabbed my arm like that all I would have to do is just walk into him and drive him into the dirt. He did a very foolish thing, grabbing a young man that way, even someone much smaller could have hurt him severely.