Quid pro quo is legal Latin for “one thing for another thing.” Quid pro quo harassment occurs when a supervisor makes an employment decision depend on whether an employee submits to unwelcome verbal or sexual harassment.  In extreme examples an employer might actually fire a female employee because she refuses to date or sleep with him. But sexual harassment may be much more subtle. A male supervisor might give favorable treatment to female employees willing to flirt with him or put up with his unwelcome comments about how she looks or what she wears. In either case the harassment is clearly illegal, and any victim of quid pro quo harassment has the right to sue under either federal or state law for money damages.