I thought that I couldn't be fired for having arthritis either (I have osteo in both hands), but they got around that by saying I was unable to do the job I was hired for and there was no other duties I could do...which was true. I could have done enough things to keep working my 40 hours/week, but not necessarily what was in my job description. I wasn't technically fired..just put on transitional duties for their maximum 45 days, then a medical leave of absence for a maximum of 120 days. As I am unable to return to "full" duties, I am unable to return to work! BTW..I was well liked and was one of the top employees at the store I worked at. It was our corporate offices that made this decision, not the people I worked with everyday. Make sure you know your company's policies before doing anything, especially if they're looking for a way to get rid of you. Good Luck!!