Have you ever considered getting a service dog for your disability? If not, why not? What do you think of them, how they're perceived, how they affect perceptions of us?
Part of me wonders if people would often react positively toward the dog and whether those feelings would transfer to recognizing needs or whether people would be less likely to perceive those needs. A part of me says this doesn't matter as much as the very practical help they can give with basic tasks, help that can save energy or reduce pain and injury from movements such as picking up objects or opening heavy doors while seated, nudging chairs out of the way or pulling footrests, doing a number of tasks that it's awkward or difficult to ask people to do--because, as my sister was saying, people expect others to be self sufficient, the Western pull-yourself-up-by-the-bootstraps and do-it-yourself attitude. This was one of the problems at work--there were many people who were willing to spare a moment to help with some quick small task, but others who were not--and help was not always available since people have meetings and other tasks.
For more on service dogs, see this post by Grace R. Young, occupational therapist: http://graceryoung.com/?p=51. I've been thinking, Grace.