[officialtony]

Trying to visualize this, I can only see how the batter might have interfered with his own runner trying to reach the plate. If he is squared to bunt, he must be pretty close to blocking the plate from the 3rd base side. His own runner had to slide around him ( it sounds like ) and therefore may have hindered his own runner to the plate.( Not to imply that this is any violation that should be called. ) On the other hand, B1 may also have interfered with the catcher trying to make his play at the sliding R3. Having said all that, the PU was right on top of the call and if he says safe with no interference, then we have a correct call based on his judgment. The BU has no business stepping up UNLESS the PU has called to him for an opinion. Without a request for help, BU goes to A and we play ball.