Christensen v. Royal School District, 156 Wash. 2d 62 (2005)
The plaintiff-child and parents sued the defendant-school district, the principal, and a teacher, alleging that the teacher had sexually abused the child, and that the district and principal were negligent in hiring and supervising the teacher. In a responsive pleading, the defendant-school district and principal asserted as an affirmative defense that the child's voluntary participation in the sexual relationship with the teacher constituted contributory fault.