Hey Mike,

I know you'll probably scream at me, but how is it spectator interference. They aren't spectators of the game in question. They were playing on another field.

I agree, there should be some ground rule to cover this. I'm surprised the city park and rec department in this city didn't give the umpires some guidance on how to handle this type of situation. Of course, they probably didn't because they didn't forsee this kind happening. Maybe lesson learned for us all who work on such fields.