Over ruling another umpire

[Jerry]

And what if your partner doesn't see or look for the flat hand on your belly, and rings up the runner? Oh . . . but the coach sure did! Or you've got a partner who's not in your association and doesn't know the "secret" hand signals? Or chooses to ignore your signal, because he feels his judgement is just as good/bad as yours? What if you're blocked out from a pitch because the catcher popped up in your eyesight just as the curve ball broke over the middle of the plate? You want your partner to "signal" a strike to you? Or a "banger" (as you describe it) at home plate where he's at 3rd base looking down the line and clearly sees the catcher miss the swipe tag? You want him to signal you somehow for reassurance? As BU or PU, you've each got responsibilities and you've each got judgements that have to be made. If for some reason (like a heart attack or stroke) you miss a play, THEN maybe you'd want to seek help from your partner. Otherwise, you've got to call what YOU see. That's your job!
Jerry