Dominic Watson

I overthought this to death until I tried one line at the door: 'I cannot do drop-ins, please text me first.' Then close politely. Follow it with a friendly text the next day that gives them a clear window, like Saturdays after 10. A small door note that says 'On calls or with family. Please text.' reads softer than 'Do not disturb.' The key was saying it the same way every time and not opening when the timing was bad.