Q. My ex is always making plans for our child on my time, particularly when there is a holiday that requires some creativity to navigate. He looks for loopholes in the custody order to keep our son longer than he is supposed to. When I tell him to bring our son home, he gets angry and says, “He IS home!,” then calls law enforcement, hoping the police will read the custody order as he does. My ex treats this like a game. He wins, I lose. It’s exhausting and scaring our son. What’s good ex-etiquette? A. Well, it’s certainly not a game, and disagreements can be exhausting if not handled construct…