If someone truly runs into when you're stationary, I'm not sure anyone really has a problem with you in that scenario.
For the same reason I try to be courteous and try to always say "hello, thank you, have a nice day" even if sometimes I am fuming inside that someone cut my path and I had priority from a legal point of view. I also quietly slow down and give ample distance to someone who cross the street when I am driving even when it is a stupid decision from their part and others would have honked or shouted insults.
I don't think our life and interactions should always be a case of us vs them.