I take my example from Provo. The owner of the LDS took us down there. He is an instructor certifier and Platinum Pro 5000 diver. He never mentioned that to the charter operator or the other people there. Obviously, everybody in our group knew that. It is hard to sue a bystander if you didn't know that he was a professional in the first place.
If I do things professionally, even there, you may be able to take me to court, but I do carry insurance for that. Even then, I doubt that you would win. There have been lawsuits filed in instances such have been mentioned. I have any heard of one winning result up here and none against a dive professional out of our LDS or any of the three or four dive shops within 75 miles of here. Juries tend to figure that if you are diving, you should know that you are taking a risk. So long as the professional (me, soon enough as well as many people on this board with far more experience) does not display negligence or a lack of undo standard of care, we are not likely to lose a lawsuit on a "busman's holiday." In our own classes, that is a little more dicy. But, it is still manageable if I do my job the way that I am supposed to. This is the reason for taking over a half of a year to finish my qualifications. This way I learn to do the job right! The other thing is that I love it.
I have said that this isn't for everyone. But, if you have the attitude that you want nothing more to do with your free time than dive and to SHARE that diving with others, DM/ DiveCon is something to consider. If you are only looking to be a better dive buddy, take a stress and rescue/ rescue course and an entry level technical class. The first is obvious. The second is that a large part of the entry level training for the tech agencies is working as team, which means accounting for your buddy and paying attention to him/ her.
The above is not the opinion of anyone but the author, so take it for what it is worth.:ggrin: