@inumpire and @YOCOACH — you guys are talking about two different scenarios. YOCOACH is following the original scenario (game ball in the gap in the outfield, foreign ball on the infield) while inumpire has a new situation (game ball coming in for a play, foreign ball in the area of the play).
YOCOACH, you are being generous if you are happy with just second base!
To inumpire’s situation though ... you have the game ball coming in on a play and the foreign ball rolling into the infield ... you are saying you are killing it. And then ... what? What are you awarding? Odds are your award is either robbing the runner of a base or the defense of an out when neither is at fault.
I understand if there is a player safety issue/concern ... but player confusion isn‘t our problem.
Exactly my point posting in reference to the OP. That said, if the play were to be killed for whatever reason (even though within the rule set it shouldn't have been) with my BR already rounded and heading towards 2nd, I'd be really upset if they tried to return her to first. There's been more than a few times I've had to explain the rules to an umpire. Entirely in a nice way (as I've learned it never helps to be upset and take it out on the ump like an a$$)and usually to no effect. However, when the game was over, many of them came up to me after the game and said, 'Yeah, I blew that call.' It mostly happened after they discussed the rules with the other umps or UIC.
Heck, one of the reasons I know them so well is reading the discussions amongst you guys on here