During the holidays Starbucks uses fancy Christmas cups that have neat little sayings on them. Comforting, Christmassy things to say like "Today I talked with a stranger over coffee for an hour, they aren't a stranger anymore." And "I lost a friend a while ago, today I found her again over coffee." Those sorts of things. Last week I was there drinking my tea with some of my friends. They started reading off the sayings on their cups. At the end one of them looked at me and said "Funny, I think I've heard Carmen say all of these sentences at one point or another." We all laughed.
The thing is, today I was in Starbucks talking with a friend and a stranger came and sat beside us and entered our conversation. We talked for two hours. It was fascinating. So yes, I did talk to a stranger over coffee for an hour, we aren't strangers anymore.