Turf war

"It's not as bad as I thought it would be," Pippa said, in reference to being a six and three-quarters year old person with two homes. After all, she is a Brooklyn person, albeit a small one, and lives in an atmosphere where having two homes is not uncommon. She didn't say how bad she had imagined it. She did say that it was nice not to be living with two people who either weren't talking at all or were fighting. As an only child, she learned early when to strategically disappear.
Now that The W, or Dweez, as he began to be known in Thespia's camp, lived right around the corner from PS Good and Plenty, he demanded that Pippa's days be divided exactly equally between himself and Thespia. Pippa does love him, even though he often causes her brow to wrinkle with his forgetful ways. She has to take good care of her Dad, as it has not been demonstrated to her satisfaction that he is capable of taking good care of himself.
Dweez's half of each custodial week begins either Saturday afternoon or Sunday morning, in alternating weeks. Pippa goes home to Thespia's on Wednesday, after school. Dweez finds a lot of pleasure in loitering around the school yard, gabbing with other parents. Mostly mothers. And what a lot of admiration he gets for being such a devoted Dad! And what a lot of sympathy he gets for his efforts to function as a single father! And what a lot of fun it has been for Thespia to field the questions of her students' parents, after they find out from The W that her marriage has gone south!
Dweez also cruised by Thespia's classroom, whenever the spirit moved him. Whether the students were present didn't concern him when he had a message of the utmost importance to deliver. Laying down Dweez's Law can not be done by phone, computer or text message, apparently. He only gets the bang for his buck out of face to face conflict: sure to occur when he disrespects his adversary's workplace. School security was not available to help Thespia deal with these invasions. There is only one security officer and she can't leave her post in the front hall during the morning influx. The teachers are discussing implementing a policy to bar the parents from the corridors outside the classrooms unless they have prior authorization to attend a conference or an event. They have been discussing this for the past six months, without resolution. What overworked staff member should be asked to assume the policing of the hallways?