I used to answer the door to anyone but now I only answer if I recognise the person as if I'm not expecting anyone it's almost always an on the door salesman or something else I just don't want.
If it's important they will leave a note and I can call them to come round.
I don't run upstairs or hide. I just ignore the door in full view of them. I just don't answer to anyone I do not recognise.
AIBU? And anyone else the same? 