Here in Washington we have a 40-point, second-half rule. I'm not sure how the rules are written in other states, but here in WA one of the things that continues to stop the clock is "officials time-outs." Of course, that includes a whole slew of things (enforcement, chains, etc) that the state very specifically wants us to stop the clock for (reference the multiple memos on the topic!), but coaches don't realize this.
The result: in five years of high school officiating, I've had exactly one official coach-referee conference. I had the misfortune of being the white hat when the losing coach in this game called for a conference in order to find out why I wasn't using the running clock. I explained how it worked and his reaction (shocked expression, body simultaneously tense and slumping, massive eyeroll as he turned and stalked back to his bench) was kind of hilarious.
I offered to show him the memo if he wanted. He didn't take me up on the offer
