A couple sat at a booth and let their toddler watch a tablet at full volume with no headphones. It was piercing. When my server politely asked them to turn it down for the other guests, the dad snapped, "He’s a child, deal with it." I walked over, took their menus, and pointed to the exit. "He’s a child, but you're the adult," I said. "If you can’t parent in public, you can eat at home."