The young lady handles the older man's unwanted familiarity well. However, it was not the sort of thing that Quentin was want to let pass without comment. "Mister Longbottom." He says his voice having the snap of a military commander. "You will reframe from touching anyone in such a familiar fashion without permission while you are under my employ. I would also, strongly, recommend you not do so again in my presence unless you wish to see which of us is better with his fists." Which, considering the difference in age, stature, and health between the two was not something that Harry would likely be keen on.