I was a donor!!
Sis had recurrent C. diff, unresponsive (can't remember the medical term) to normal treatment. Her son tried to donate but was too uptight (get it?). Anyway, after testing for Hep & AIDS I was cleared to donate. "Need a laxative?" "Nah, Raisin Bran for breakfast and I'll get you a good, ah, specimen!"
We're killing off way too much bacteria! We've all heard of women (especially) getting yeast infections after being on antibiotics. The yeast was always there, but bacteria kept it in check until we killed the bugs off!