Employees can sometimes file claims under the Family Medical Leave Act (FMLA), the Americans with Disabilities Act (ADA), the Rehabilitation Act, and the Employee Retirement Income Security Act of 1974 (ERISA).

FORBES: Sex Discrimination, Age Discrimination, Family Responsibilities Discrimination?

Under the Americans with Disabilities Act (ADA), employers must accommodate the mentally ill just as they do the physically ill.

CNN: Federal law provides job rights for the mentally ill

"We have some historic protection on ADA issues, " says its director and president, Fred Bollerer, referring to the 1990 Americans With Disabilities Act.

WSJ: Corcoran Gallery of Art | Another Museum Mulls Pulling Up Stakes | By Eric Gibson