When a teammate’s temper hits ten, wait until it drops to four before saying the thing that matters.

At ten, nothing gets in. You are not talking to your teammate any more, you are talking to an alarm going off, and anything true you say now will be remembered as part of the noise. The same sentence at four gets heard, considered and sometimes agreed with.

Wait it out and say the thing later, on the walk, in the car, the next morning. Waiting is not letting them off. It is making sure the point you actually care about arrives at a moment when somebody can pick it up.