I went through security at DCA a few weeks ago. The guy checking the paperwork at entrance to the security line looked at my passport, at me, then said, "You know, you look like Mr. Bean" (it happens to me occasionaly). I responded "I don't look like him, I am him".
He did a quick double-take, then realized I was having him on.
We both laughed.
Yes - even at DCA, there are some normal people.