I hate to say it, but ...
No, the person I was talking to today did! She's a counselor, and when I told her "5 minutes of anger suppresses your immune system for up to 8 hours", she said she'd never heard that.
That's the "thing" I use to convince the people who get off on being angry, and are such a source of stress to other people. They're ruining their own health too, of course, but they aren't aware of that.
My EQ program is full of empirical (researched) data that is impossible to refute, and will convince the most cynical person. Um, I have worked with disruptive doctors, annoying lawyers, meddlesome daughters-in-law ... teachers who think they know it all. These people who can't manage their anger and really don't want to, can make life hell for the rest of us.
I also offer the highly-acclaimed DIFFICULT PEOPLE course. It might be just the thing for you.
Email me for more information. firstname.lastname@example.org
I work internationally by phone and email, and my core courses are on the Internet. I also have offices in Manassas, VA and Chevy Chase MD for your convenience.