A friend of mine was staying at my house one time as I was getting ready to head out for a marathon weekend. "What do you say to someone about to run a marathon?" he asked me.
You know, if it's an actor, you say, "Break a leg. What do you say to a marathon runner?"
"I don't know. Go f*ck youself?"
It was good for a laugh at the time. But later that day as I left for the airport, his last words yelled as I walked out the door were, of course:
(Do I have to say it?)