Not using it any more.

[ODJ]

It works if; 1) it's followed up with a T if not heeded, 2) the coach has seen it in action before (and the consequences).

Friday we had a coach complaining about us, and not how his team seemingly couldn't play defense without doing arm extensions on rebounds.

He chirped at one partner, who gave the "I hear you" wave as we moved into the front court. (The wave is the step before the sign.)

We then have an inbounds, I'm T in front of him. HC chirps off again. Stop sign goes up. *Tweet* to each partner: "Coach has been warned."
He calmed down after that. I

For us, it worked.