You know, I always wonder why people need to plop down on the toilets. Then you have the people who must rock back and forth so hard to squeeze that extra link out the tank bolts come loose.
I once was tasked with a special request, replace a stool and stool flange for a rather large tenant. Quite honestly she was the largest human I have seen in person. She could still walk and get around, but to give you an idea, her recliner was the same size as a love seat.
Maintenance guy finally got fed up with broken flanges and daily closet augerings. This is when the cimeron first came out. So I chipped out the old flange glued in a new one, topped it with four half moon repair's and used as many tapcons that I possibly could. Never got a back call even after warranty.