PU Calls Bunt Foul - I think

[officialtony]

to mcrowder -
The coach spoke with the PU for about a minute and a half. The PU appeared to be defending himself, but I do not know what was said. I do know that the runner was left on base even after it appeared he had called the ball foul. Again, I want to emphasize that I did not HEAR him say Foul. I only saw his hands clearly ( in my mind ) signal foul. But enough people on and off the field felt it was called foul to have the coach come out to question the runner being left on 1st base.
Again, my feeling is the PU booted the call and didn't want to admit it. The real point of my post was -
If I was the one who made this error as the PU, should I put the batter/runner back in the box with another strike to his count and admit I blew the original call, or . . . . do I leave him at first and try to talk my way out of it? My gut feeling is I admit the mistake and make the batter return to the box. I was looking for others to tell me how they would handle it