When I lived in Manhattan years ago there was a murder on my street. I walked out of my building and saw police tape up the block a ways. As I got closer I noticed Jimmy Breslin himself standing by the crime scene, jotting notes on a pad just like a rookie reporter.
As I approached I said in a friendly way, "Well what do you know, Jimmy Breslin, I'll be..." or some other such brilliant ice-breaker. Guy just looked at me. Not hello, not an acknowledgement of my presence, nothing. Just a grim glare and he went back to his notes.
What a pearl.