A couple of things here. First off RJT is right when he says in your example here you are not describing a GBP as much as you are just funding a ploppy. GBP's don't play hunches. If they do they are not doing their job.
Secondly, losing your cool at the table shows just as much lack of discipline as a ploppy posing as a GBP. Actually its worse, because you should know better. Making a bad situation worse solves no problems it only creates more, as well as possible permanent ones. Not to mention it would be your responsibility and your own fault if a GBP you hired was not trained properly, or was not able to function at advantage play.
As far as what a gorilla should know, well thats up to the team. But I will say that a gorilla definitely does not need to know BS or any adjusted form of it. They just need to know how to take signals and execute their actions. There are brilliant people that do not know BS, because its not their job to. Not knowing BS is not a symptom of stupidity in real GBP play. In many cases, but certainly not all, its just not a job requirement.