Out of curiosity, I looked at the Big John website to find out how fat a person would have to be to break a toilet like that.  The Big John Toilet Support mounts underneath the toilet bowl working in conjunction with the existing wall carrier to redistribute the weight and increasing the weight capacity from 350 lbs to over 1000 lbs.  Ok.  I imagine the toilet wouldn't suddenly break at 351 lbs so I'm thinking the ham in question was at least 400lbs+.  Though if they just plopped down as I suspect someone that fat would have to since they lack the strength to ease down, the impact would be much greater and they could have even weighed less than 350, maybe in the 300 range.  Regardless, someone that fat shouldn't be allowed to leave the house.