Handicap parking

Today I had to run to our local supermarket.
As I approached the entrance, I noticed a driver looking for a parking space.
I flagged the driver and pointed out a parking space in the handicap area.
The driver looked puzzled.
''I'm not handicapped,'' she said.
Well, was my face red. ''Oh, sorry about that, I saw your Obama sticker and just assumed...''
She gave me the finger and called me some dirty names.
The way some people behave when you're just trying to help them...