I love this, Margo. I’ll give you a line that an old gym of mine had posted on the wall at eye level in the weight room:
STRONG MEN DON’T DROP THEIR WEIGHTS.
That’s sexist, but I no longer care. You get the point. I have muttered that under my breath — well within earshot of the offenders- plenty of times. You can always and forever tell a rookie by how much noise they make, how much attention they are desperate to get from everyone around them, and how much of a noisy, wholly unnecessary show they put on by dropping weights. That telegraphs INSECURE BEGINNER every. Single. Time.