I work in a bank (the largest in Canada) and I must say, with almost 10 years there, they know about my disease and have accommodated me in so many ways. Shifts during the day only, not changing my hours and breaks around, they're sending me to start working from home this month... so great employers are out there, but it can be tricky, and in some cases it's better not to even mention to the employer that you have MS (If the conversation can be avoided).