Purposeful Delay in Returning to the Court
Saw something more purposeful observing several middle school games a couple of years ago. A1 throw-in to A2. Coach A yells, "Not yet. Not yet. Not yet. Not yet." A1 stands OOB as directed. Finally, as all the defenders migrate toward the player with the ball now at the top of the key, he yells, "Now!" A1 steps inbounds, alone and unguarded, for an easy pass from A2 and an easy, unchallenged score.
Lack of knowledge of the rule led to no call being made each time I saw it. Maybe three times in three different games.