Patient who instantly hates me for no clear reason:  ::suspicious glare::  You pregnant?
Me:  No, awkward ha ha, I just had a baby 7 weeks ago.
Full-of-hate:  But you still got a bump like you pregnant.
Me:  Okay.  ::pointedly polite smile:: How can I help you today?
::Patient's friend enters the room:
FOH to friend:  "This doctor isn't pregnant even though she got a tummy like she is."
Awesome.