@zota: Trespass porn viewers on the first offence. The problem will go away.
You certainly wouldn't need a librarian standing over each person's shoulder (although, with proper placement, that should be enough), just computer monitoring software.
Prohibiting porn and using filtering software need not be linked. You can prohibit porn without filtering, provided that you vigorously enforce* the anti-porn rule.
*This can be difficult and expensive. It requires both a spine and money. But it can be done.
It's been a while since I've experienced a hard winter -- thank Frith! -- but it makes sense to me that the wind, blowing from one direction, could coat a sign like this.
http://www.polyvore.com/they_re_happy_because_eat/thing?id=23646413
You certainly wouldn't need a librarian standing over each person's shoulder (although, with proper placement, that should be enough), just computer monitoring software.
*This can be difficult and expensive. It requires both a spine and money. But it can be done.
Neatoramanaut, size L.