The on deck batter remaining in the circle until called

[jicecone]

I work in the construction industry, where knowledge of an unsafe condition is probably just as bad as permission to proceed unsafely. For this reason I tend to error on the side of safety. I always back the batter off for HS level and below. Of course I also check the bats and helmets at the appropriate levels, (or as required).

Before this rule came out I witnessed a player get beaned on an errant throw. Fortunately he was ok, but didnt play that game. He had stepped close to the plate for timming and was then distracted. Turned back around and took the ball right between the eyes. Its probably wise to keep then in the on-deck circle.