I am touched - thank you for your concern, but I don't generally require a "porno-fix" ;)
When porno is all over library screens at the town library, and men are masturbating to it there, some part of my right and ability to raise my children as I see fit has been stolen away from me.
It seems to me that laws are in place to deal with such contingencies - have you contacted the local authorities upon being presented with such things? Have you impressed upon your local police and district attorney your desire to see violations of public lewdness statutes prosecuted fully?
This actually happened in a nearby town, and many are protesting. But the librarians are saying they don't want to check the cubicles to see what's going on, and the police don't want to get involved. Basically, some of our libraries are turning into XXX adult theaters. Great, huh?