Rabbit Ears?

[Chess Ref]

Sounds like you handled it.

Coach moaning, groaning, then crossing the line.
You step in and addressed it.
Coach basically cuts it out.

Sounds like a textbook case of good game management.

When they whip out the " I was talking to ____" my standard reply is if I can hear it I will address it.

I've worked hard on game management and the most important lesson I've learned is........

The sooner I deal with it the sooner it stops.