BR Misses 1st / Beats throw mechanic

[TwoBits]

Originally Posted by RPatrino

If the BR is still walking back toward first, I am not going to grant time until he is touching first and ALL play has ended. What if, by some quirk of fate, the BR decides against all odds and logic, to make a break toward second? This is not likely, but nonetheless, just wait. We don't alter the flow of play to accommodate a possible appeal.

Would you grant a live ball appeal if B-R missed first, and F3, while standing on the bag and before the B-R returned to the base, stated that he missed the base and was appealing?