My late-twenties daughters were giving me a good natured ribbing today about the “arm hold.” When in public, when the girls were young, if I saw them starting to get wound up, I would put my hand on their upper arm. That meant “settle down or that’s enough.” If the behaviour escalated, so did the pressure on the arm. According to my daughters they were also very aware of “that look.” Apparently “that look” meant you are in big trouble!