I must have ripped my ring so many times having shits, even to the point where there was blood all over the sides of the toilet. Personally I think this is a fantastic achievment. The downside is that as your ringpiece heals, it snaps eveytime you go for another shit so healing time is varied. This in my mind is the sign of a fantastic shit.
Gotta be my home toilet. If a public one - the disabled one anywhere. They are always cleaner and have enough room for you to lean to one side, left a cheek and wipe.