clock not starting with only a few seconds left

[TriggerMN]

If the ball is in the backcourt, or the ball handler is being closely guarded in the frontcourt, you better be counting. If that happens, you have definite knowledge of the time being used, and can by rule change the clock. If you have a team just passing the ball around, you're SOL, if you haven't noticed.

Also, whenever you hear ANYBODY yelling "Start the clock," you take a quick glance at the scoreboard. If it hasn't started, stop play immediately.