Hey zander!
I realy like your question, as it one one ive wondered for along time but ive been too scared to accept the answer "yes".
Im registered disabled and have a blue badge (i live in the UK) but if anyone actually asks i say no. I also agree that we, without thinking do hide our MC, well i do anyway. I would say to you, me and everyone else to not care what anyone else thinks but that wouldnt be a good idea. There will always be people who won't understand. However they will always be somebody who will, though it can be hard to find them.
paige :)