We have a special needs daughter who qualifies for a Blue Badge for various reasons, when she was younger she would get out of the car and tear along for about 50m as if she had no problems...... we used to hear many comments about "abuse of a blue badge", the same people then saw her tri and fall and not be able to get up and walk, her medical condition resulted in a chemical gap between the nerves and the muscles which was not capable of being bridged, so that after about 50m she had run out of the important chemical.......
Her school were made aware of it yet tried to encourage her to walk around the field a couple of times...... "just to keep her fit".....
they only did it once as she was totally unable to move for many hours and an ambulance had to be called to transport her to hospital where she was helped to recover over a 48 hour period.....
So she LOOKED perfectly OK, but if anyone watched for a little while they would see her crumble into her disability and not be able to recover.....
DON'T JUDGE A BOOK BY IT'S COVER - or a persons disability by an instant observation, you may well be totally wrong........
She used to use the disabled showers (under supervision) although she always showered sitting down........ but of course walked out from the shower.........
of course, a "disabled shower" does not exist (and would be useless if it did as a disabled shower would not work) but a shower with adaptations to make it more suitable for ta disabled person may be used by others, different forms of disability require different adaptations; written instructions are of no use to a person who cannot see, a hand held shower is useless for a person who cannot grip something, a shower tray with step is useless for a person in a wheelchair and so on.....
Sadly, many people do not respond well to being challenged, but that may a reflection of the way that the challenge was made.....
Dave