Reply #45: And sometimes it is an invisible handicap

[havocmom]

Like a bad heart, poor lung capacity or really bad arthritis which can flare and make walking very difficult. It may be MS of other nerve related problems where you look fine but at any moment, you can have trouble with your limbs.

And, yeah, it could be the passenger. When a healthy driver parks in a reserved space without the passenger along, they are just plain obnoxious at best and abusive to others who may need the space.