My dad has a handicap tag. Some people look and give him dirty looks because he doesn't look handicapped. He has poor knees and hips (which are all broken) so it's hard for him to walk far distances. But he walks fine, but that's after years of learning to walk properly.
Anyway, it pisses me off when people park in handicap spots when they don't need to (ie. no tag)... What if people need it.