Blarge alert!!!

[Nevadaref]

Originally Posted by just another ref

So, you guys correct me if I am wrong. Are you saying that if you are positive it is a blocking foul, but have not made the block signal, but you do have a fist up, and the other guy signals PC, it is ok to walk away from the call, but if you have made the block signal, you will report a double foul?
Also, if the other guy sees your signal, says "My bad," and walks away, what would you do then?

Yep, that is exactly how it works.
Only one signal is given, then it is okay for only one type of foul to be reported. If two signals are given, then two fouls must be reported and the result is a double foul.
Neither official is permitted to simply drop his signal and walk away. If an official did that, then a coach would definitely have a right to get upset.