I think it varies on the referee/umpire that is calling the game.
My son is wrapping up his first year playing high school ball and most of the umpires we have had aren't any better than the ones that volunteered to do little league games.
However the one we just had the other night was a drill Sargent. If the pitcher took too much time between pitches he barked at them, If someone showed frustration he warned them to keep it in line. He must have been a military guy the way he was riding the players.