Sexual harassment of teachers by students is rampant at Serra High, a teacher claims in a lawsuit filed Thursday against the prestigious all-boys Catholic school, describing a sordid "boys will be boys" atmosphere where kids competed to get up-skirt videos of their female instructors.

Kimberly Bohnert claims that administrators failed to protect her over two years of humiliation that also involved sexually explicit tweets, graffiti and an online image reproduced by a number of athletes at the school. The storied institution, celebrating its 70th anniversary, is best known as the alma mater of such sports stars as Barry Bonds, Tom Brady and Lynn Swann....

Bohnert, who grew up in parochial schools, started teaching at Serra High in the 2006-07 school year. During her second year there, a female English teacher had her buttocks photographed and shared by students, Bohnert said. The following year a student was caught in the act of taking an up-skirt photo of a female Spanish teacher, she said....

In February 2012, school staff found sexually explicit and violent graffiti on the boy's bathroom wall targeting Bohnert, according to the lawsuit. The administration told her they were investigating, but she said she never heard more about it.