You could totally nail your boss for harassment if they fire you and you were in the hospital. A friend of mine got fired from his old job selling cars because he was bi-polar. They told him flat out, you're fired because you're crazy. He knew he was crazy, he had medication issues (some made him worse, others he was alergic to) and had doctor's notes to back it all up. He sued the company for $250,000 and won. He laughs about it now saying all they had to do was to fire him for violating the dress code and he wouldn't have had a foot to stand on!
Anyway, stick it to the man!!!