When someone knocks on your front door when you're not expecting anyone.

[Losty]

I don’t like it when people come unexpectedly to my home, but I usually answer anyway. There was a time when I refused to ever answer unless I was expecting someone but my anxiety is a lot better controlled these days. I gave a neighbor a coffee filter the other day. I felt like a hero. Imagine a morning without coffee I’d be desperate enough to knock at a strangers house too lol