[AtlUmpSteve]

I feel you, YoungUmp; you were searching for a rule reference that related to a nonparticipant or situation (I really didn't read the OP to be suggesting someone threw the ball on the field, I took it more to be a foul ball off an adjacent field) that possibly affected the play on your field.

But, you used a specified and intentionally limited rule to try to cover this; just like we cannot declare umpire interference when an umpire DOES interfere, but not in the defined way, we cannot use spectator interference in the undefined way.

There are two options. 1) Unless you absolutely/positively have someone in imminent danger of serious injury, DON'T be the leming that yells "Time" whenever a ball approaches your field during live play. Sure, if you can stop it before live play, not a bad plan; but once the ball is in live play, 10-4.E says SHALL NOT CALL TIME while any play is in progress. 2) If you DO kill play on your field, the PU has to apply 10-4.G (the ONLY rule that can apply when violating 10-4.E) and make a best judgment ruling awarding bases; and do-over and even apparent outs aren't legal options. Anything else is a lost protest. Since that never leaves people happy, try not to get there.

No, you cannot apply 10.1, either; it is covered in 10.4 that you shall not call time.