Yes. I'm overly paranoid. It'll probably never be needed. But this 6D I just got is a very expensive device that I need to care for as much as possible.
Two figure eight follow through knots with safeties at each end.
It is independent of the hardware, so no matter where BR hardware may fail I am limited only to the failure of the BR webbing, the knots or the paracord, or the camera strap mount itself. I previously had this set up on my T3i and it doesn't interfere with BR use, is easily removed, and is really cheap.
edit: sorry for the potato phone pics