Back in college, there was a guy walking around, very chatty. We got to talking and he joked that he was drinking alcohol. I joked back asking if he wanted to "Irish up my coffee." We hit it off and hung out until he went back to Germany.
Year or two later, friend was hanging out at my house and we were talking. I got to complaining about how I couldn't find a decent lawn guy and he told me he knew a guy that lived nearby, give him 30 minutes and he'll bring him over.
This friend is always excited to introduce people, he went and got his friend who lived down the road, and before he could introduce us, the guy goes, "aren't you the one with the coffee?" And I replied, "aren't you the one who was going to Irish up my coffee?"
Guy came back from Germany and happened to live down the road from me xD mutual friend was soooooooo dissapointed we already knew eachother.