When I worked at a bookstore, I was talking to a customer who was looking for books on education, and she explained she wanted to be a teacher. I told her my parents were teachers. She scowled at me...
Her: "So your parents are part of the system designed to make kids today stupid?"
Me: "What? Excuse me?"
Her: "The school system today is filled with overpaid, lazy teachers who do nothing but make kids feel dumb. I want to revolutionize teaching as we know it."
She then lambasted me, without prompting of any sort, for being "poorly educated", and that she "felt sorry for me".
She then handed me a business card, before going off to tell my manager what a "poorly educated child" I was.
The really funny part came when we all looked at the business card later. Her name was stated as being "Dr." (somebody)! On the back were her credentials, including a PHD in "ME"!
A doctorate in herself? That must mean she knows herself really well. But then, why didn't she realize she was insane?