YES! 2-3 years ago, big BV tournament in our area. Championship game. (Ball coming in at Baseline/endline (you choose)) I am trail going to new lead. Team A is set up to press (full court). Team A player mumbles something in front of Team B bench on the inbounds play. Team B coach starts jawing with Team A player. I look at both and tell them to knock it off, but the player continues, and then so does the coach. About 2-3 seconds later, here comes the Team A coach screaming at the Team B coach. Team B coach returns the favor. Now the two coaches are about 10ft from each other both yelling. I walk in between them give the ole' whistle as loud a tweet as I ever have and stick both with a T. I literally had to yell over them, and then to them to "Sit Down . . . NOW!! Not another word from either of you!"
No problems after that, but a few minutes later the Team A coach asked, "Ref, why did you have to give me a T?"