I'll never forget my aunt contracting E.Coli when she was in hospital. The doctors had botched the operation when they removed her appendix and hadn't stitched her up properly. Infection set in because her stitches were leeking
and then they had the audacity to accuse my Nan of having caused the infection because she kept a cat in house, so she must be "dirty"!
Needless to say my Nan exploded! Funnily enough, the doctors didn't repeat their accusation........