Is there any case law or case law supporting a claim of a "hostile work environment" where a plaintiff alleges that she was harassed by a colleague because of her own conduct?

We agree with White that these factors were not particularly relevant to her allegations. Nonetheless, the challenged factors are relevant in a general sense to a claim of hostile work environment. Harris v. Forklift Systems, Inc., 510 U.S. 17, 114 S.Ct. 367, 371 (1993)("whether an environment is 'hostile' or 'abusive' can be determined only by looking at all the circumstances"). We cannot say it was error to include these factors in the charge. While a plaintiff may certainly establish a hostile work environment even if the harassment comes only from one person and the plaintiff is the only one harassed, it is nonetheless true that an environment in which numerous females are harassed or in which many offenders join in the harassment is more powerfully shown to involve hostility based on gender. It was not error to include these among the factors the jury could consider in determining whether White established a hostile work environment.