Yeah, having read through the various posts I am slightly leaning towards the view you may have over-reacted a tad. Not saying what he did was prudent, but not worth yelling about and embarking on a crusade. If you dive long enough, you will see a lot worse (I suspect you would have a heart attack if you met "instructors" who regularly take uncertified divers into caverns in Mexico and Southern Europe). And agency standards are not laws. Nobody got hurt, or was put in a potentially threatening position, so probably I would have left it at a conversation with the instructor afterward if you felt really strongly about it.
This is probably where I would disagree with you more strongly. Although they refer to it as a "profession", the truth is the standard required to be a scuba instructor is not very high, and most instructors keep it up for 2 years or less. Not knocking the more dedicated instructors out there, but dive long enough and you meet a lot of bad instructors. It is not like qualifying as a doctor or an architect - "profession" or no, many of them are just a bunch of young kids having fun before life gets more serious. I set my expectations accordingly.
I found it wildly unprofessional, and I am admittedly angry.
Maybe I am supposed to just chalk it up to "there are assholes out there, ignore them the best you can", but this is really unacceptable behavior in my mind, so yeah, I reported it to his shop. At that level, he should know better.
This is probably where I would disagree with you more strongly. Although they refer to it as a "profession", the truth is the standard required to be a scuba instructor is not very high, and most instructors keep it up for 2 years or less. Not knocking the more dedicated instructors out there, but dive long enough and you meet a lot of bad instructors. It is not like qualifying as a doctor or an architect - "profession" or no, many of them are just a bunch of young kids having fun before life gets more serious. I set my expectations accordingly.