Raymond wroteI also let them know we're not explaining all of our calls.
Agree.
I'm more likely to "communicate" with coaches regarding "controversial" or "complex" calls and calls where I believe that I, or my partner, may have screwed up (straight lined, etc.).
Once every few years, or so, I've been known to line up (incorrectly) tableside as the trail on a free throw (two person) anticipating giving the coach a chance to "communicate" (vent) without having to yell across the court.
I try to strictly limit my "garden variety" communications with coaches.