Braves/Giants play in the 13th

[Rufus]

Full disclosure - I'm a Brave's fan but think the 14 baserunners they left stranded and the hanging slider Wagner served up to Renteria had much more to do with them losing the game than this call/no-call.

The comments about the C running into the bat got me thinking about what criteria you look for in this type of situation. McCann was in the process of throwing. It didn't appear he leaned over to run into the bat while making his throw, just ran into it as a consequence of trying to make a play.

I guess the question is - What characterstics do you all look for when determining interference/obstruction? Is it intent (e.g., batter waves the bat in front of the catcher on the swing follow-through) or just the fact that, in your judgement, interference existed (definition of interference from OBR being "Offensive interference is an act by the team at bat which interferes with, obstructs, impedes, hinders or confuses any fielder attempting to make a play.") not through intent but just by the fact that the bat was there?

Again, not looking to stir the pudding, just trying to understand the thought process behind the determination.