it's really cruel of the playwright to make susan go through the kidney disease.as soon as susan had been told a kidney transplantation was demanded,I googled the life expectancy after the transplantation,which is among 5-20yrs.i feel realy sorry about that.even though susan is never my favorite,i still hope the GOD would offer her 50 more yrs to live.

Her life expectancy depends on how many humiliating things she have done.