There's no law against stupidity and ignorance, but that's no reason to expect that her actions shouldn't have consequences, is it?
So you appear to think schools and employeers should be able to control your actions even away from their establishments, I have to disagree. You should have no fear when exercising your rights, from the government or anyone else. Censorship hurts everyone.
She was actually working at the time. She was on an outing with 40 developmentally disabled clients and 9 other adults. What would you think if this was a kindergarten teacher on an outing with her students? Do you know the big difference between the 2? The kindergarteners can go home and tell mommy and daddy, those clients are pretty much prisoners and can't tell anyone.
Do you have ADD, stay on the subject instead of confusing the issue with BS hypotheticals. Her clients were more than likely laughing at her acting a fool and trust me the folks in the graves didn't mind a bit. As the great Red Skelton said, "don't take life too seriously, cause you atin't gonna get out it alive anyway". This lady screwed up, she realized it, she appologized, that should be the end of the story.