person A: I went to call a patient back to be seen and I addressed them as Mrs and the person that walked up was a male. 
person B: Oh no. How'd they react?
person A: He didnt get upset.. He said it happens alot_comma_ but I can feel my face get red!
person B: I'd be super embarassed_comma_ too!
person A: Yes it was very embarrassing! we both laughed at it. 