So it sounds like te bottom line is ... Tell him my fears and that he could potentially be endangering himself, but other than that I've got to wait and see and hope? And then worry about my own actions if something bad does happen?
While I wish I had more control, I appreciate y'all answering a stranger like me. I thank you all very much.
Here's hoping I don't have to ask y'all anything else about him in the future.