“Ladies and gentlemen, the [school/home team] and [League Name] promote good sportsmanship by its student-athletes, coaches and spectators and request your cooperation in supporting the participants, and officials, in a positive manner.  Profanity, racist, sexist, or other abusive comments or actions will not be tolerated and are grounds for removal from [Facility Name].”

This announcement is derived from the NCAA during it’s athletic contests.  Most of this announcement is used, however changes were made to the original announcement to allow for customization.