Recent case: Marilyn, who is black, sued over alleged co-worker sexual and racial harassment. She claimed two co-workers had made offensive comments, left explicit sexual materials around and generally grilled her on her private life and background.
In court, the company pointed out that it had a hotline that Marilyn knew about and never used. When she finally complained,put an immediate stop to the co-worker antics. Her lawsuit was dismissed. (Greer, et al., v. Mondelez Global, et al., No. 12-3820, 3rd Cir., 2014)