What would you do or say?

[rainmaker]

Coach: How can that be a walk?
Me: Didn't you just ask Debbie that?
Coach: But...

I walk away.

OR

Coach: How can that be a walk?
Me: Check the tape after the game.

OR

Coach: How can that be a walk?
Me: I trust Debbie to make a great call on that.

AND

Coach: That's bulls***
Me: ~Whack!~ (There's no "OR" to this one, it's automatic).