Well, if we're just going to make assumptions here, I guess I'll just assume that as you gain some experience as a captain that you'll learn how to actually use CRM to work through normal/abnormal situations in a crew environment.
I'll also assume you'll learn that making ignorant assumptions about someone's ability and or level of knowledge ( based on your personal opinion of course ) does not necessarily justify your desire to appoint yourself as an honorary check airman.
We're all human beings, we will all mis-speak, have moments of brain fade, Or are just plain wrong about things at times,etc... So, if you feel that the proper way to handle things when someone could use some true mentoring is to pile on to the situation with a " pop quiz " I have to ask, do you really think that is a great idea?
You should be happy to have a crew to work with, as a captain your crew is an asset, not a liability, but if you go about your job by being afraid that you may get in trouble for something because you're not the only person on the airplane, therefore 100% hands on in control of everything then maybe you should consider a different type of flying.
After all, there are plenty of single pilot jobs out there for people like that.
assumptions!