Let’s see the face. The flight attendant may have a valid point.
They could start rejecting the boarding of any passenger with a stupid face. “Stupid is as stupid does,” as Forest Gump once said (quoting his Mama).
Maybe the flight attendant could have asked the question young Jenny asked of Forest Gump, on the school bus: “Are you stupid or something?”
I can see the airline ad: “Passengers who look stupid will not be welcome on our airline except on “red-eye” flights. You may be allowed aboard if you are just ugly but your fare will be doubled.”
I don’t think discrimination based upon stupidity is a prohibited act under Civil Rights Laws. Don’t we need to draw the line somewhere?