School districts are funny. I remember a case when a teacher was immediately fired for taking her students to the municipal art museum. There was artwork there featuring, gasp, nudes. She wouldn't have gotten in any deeper trouble if she had taken them to the local porno shop...... On the other hand it took one of our local high school districts at least four years, maybe more, of collecting information, to finally fire a teacher whose coffee cup on her desk was always filled with bourbon (everyone knew this including the students) and who was totally incompetent. I had a friend who taught there. Every time she did something the school district disapproved of, like calling the cops on a kid that made credible threats on her life, I would remind her to just remember so and so. She'd laugh and reply that she would be ready to retire before they could fire her. And it was true.