Found at school dances, more commonly the Homecoming dance. They consist of a not so elite group of annoying parents, teachers etc who will try to separate people from grinding, but eventually will get overwhelmed by the amount of people grinding, and give up. They will usually prey on smaller schools because there wont be as many students.
Student1: Why arent you dancing?
Student2: The cockblock patrol is at their peak of their patrol. Give me thirty minutes and ill be out there.