I got a call from a mother 9 weeks postpartum who was sent  to a doctor for
symptoms of fatigue.  Her employer was concerned because she seemed to be
tired all the time.  The doc told her she needed a pacemaker and would have
to wean 48 hours before surgery because the milk in her breast would
shortcircuit the pacemaker.  I kept a straight face and suggested a second
opinion.  She got a second opinion who told her that her heart was fine.  She
went back to the first person, had the surgery, and was still tired
afterward.  I swear I am not making this up - I still have my log book notes
from it!