I totally agree that black powder smoke is a wonderful cure for stress. It's also a powerful lure to attract new ML shooters. One day at a local range, I was "exercising" a long flinter that had been neglected for too long (They sometimes sulk when that happens ...) and was just reaching for my horn to pour another charge when I realized I was the object of attention for two youngsters and their Dad, all standing safely back and watching carefully. After several minutes of questions, I asked if they'd like to shoot it and explained that they first needed Dad's permission. They did, he agreed, and for at least an hour they took turns loading and shooting --- off sandbags --- at 25 yards, and with light loads. My ol' Pennsyltucky .50 caliber is a Wolf Haga replica with a 42-inch barrel and she's a mite heavy for 10 and 12 year-old's.
By the time they had to leave, the boys were asking Dad when they could get a ML of their own and he was smiling and nodding (He took a turn shooting too!) and I was grinning myself and very relaxed too.
Shinin' times!