Why do I need to stand there? Well, why do I need to move if no one's there? Why do we have to do anything? Why don't I just look after me, and trust that you will speak up for yourself? If I notice you, I'll accommodate. If I don't notice you, I'll be courteous when you say "Excuse me." Why is that so hard for you to understand? You know it's actually just as easy to say those two words as is it to avoid doorways! Maybe we all give each other some grace?