Oops, They Did It Again

Unbelievable!  I'm sitting in front of the TV watching one of my shows, Hawaii 5-0, when I stopped in my tracks.  The episode's plot contains an investigation at a high school, and wouldn't you know it--the principal is sleeping with one of the students.  What's worse, he claims it's legal because the girl is 17 and the legal age of consent is 16 in Hawaii.

Wait, what?  Because some girl's a certain age, it's still OK to have sex with your students?!  Are these guys stealing a page from the Glee playbook?