We had such a misunderstanding once as well. Three boys were pelting rocks at the building of our rowing club, so me and another went outside. Of course they ran away, but we managed to grab one, and the other guy I was with just lifted him up by his shirt, held him against the wall and said "I don't think you'll be throwing rocks again, will you?" The boy was very scared, of course, but then all of the sudden a woman cycling by turns to us and says "Will you leave that boy alone!!"
Lucky for us, the boy immediately explained that he was the one being wrong
