I never shoot without eye and ear protection. The CCI #11s I use have been reliable except for a fragment jamming the cylinder once. The blown out fragments followed the nipple on around and hung it after the next shot. Other than that, a little pinch before seating them and they seem to stay put. Hope that remains true. I've got the nipple wrench and dedicated cleaning rod and bore swab etc. for the BP pistol (so I don't mix my regular gun cleaning chemicals accidentally) and use hot water with a little mild soap. There was an awkward moment the first time I dunked a pistol in my kitchen sink. Just didn't quite seem right. But it cleaned up nicely and I finish-coated it with olive oil as I had been told this was a good coating oil for BP pistols. I'll make it a point to place a little lube on the nipple threads from now on so they don't weld themselves into place.
Thanks for all the tips.