This is pinned at the top of our local group's FB page, and has been told to our regulars. Not because it has been an issue, but rather in the hopes of prevention. We'd rather people know what to do and never use it, than vice verse.
"Sexual harassment, physical or verbal abuse, and other untoward conduct between players or characters will not be tolerated in Pathfinder Society. If you feel that someone is acting inappropriately and you feel uncomfortable, ask your GM to step in. If s/he is unwilling to get involved, or does not help to resolve the situation, contact the Venture-Lieutenant [contact info]. Or, if you are more comfortable speaking to a woman, come to me [I'm married to the VL]. Character on character violence is strictly forbidden in Society play."
That being said, we tend to play in private homes (mostly for lack of access to public venues) where things can be a bit more lax. If there are minors around, even if they're 17, I am stricter about policing behaviours and language.