It is unlawful for a hotel employer or casino employer to retaliate against an employee for:
         (1) reasonably using a safety device or notification
    
device;
        (2) availing himself or herself of the provisions of
    
paragraph (3), (4), or (5) of subsection (b) of Section 5-10; or
        (3) disclosing, reporting, or testifying about any
    
violation of this Act or any rule adopted under this Act.