No but seriously man, I really am amazed at what morons some people are.
Case in point: I am driving my car into my underground parking.  This involves driving up to a little key-thing outside the door, then you open the door with your key and you drive in there.  Very standard sort of set up.
So I open the door in the usual manner and start driving towards it.  Suddenly, as I am just a few feet from the entrance to the parking, some guy from inside steps right into the overhead doorway which I have just opened.  
I am damn close to hitting him.  I can't see him coming.  I can't see through bricks.  He doesn't peek around the corner first.  He is just suddenly right there.  I have to jump on the brake.
Dude looks surprised, scared.  I can see him sucking in a startled breath.  
What a moron.  
I promise you, the opening of that door is never a divine event.  It always means someone is coming. And there is a man door right there of course.  Dude had to walk right past it to get to the overhead door.  But I guess an open overhead door was just too enticing compared to the effort of opening a man door which would have involved using an arm.  
What a cockroach.
Dude was so surprised that someone was there.  I can picture him now.  I wish I could go back and punch that surprised moron face of his.