Two questions from a coach please...

[MarionTiger]

11yo Super Series League Game...

Coaches of defensive team are sitting on buckets in front of dugout (man I hate that). Runner advances to third on a shallow hit to center. Runner is safely at third before throw gets to third. Third-baseman misses throw and the ball hits the bucket that defensive coach is sitting on. Runner advances free of risk?

I'm not clear on a visit to the pitcher rule reminded to me tonight. Nowhere in MLB rules, or in SS modifications do I see where you only get two "free" visits to the mound in a game, and thereafter all visits must result in a pitcher replacement. I'm sure I'm missing that somewhere...but where?

thanks in advance,

MT