I had this one weird old guy come up and ramble at me in some round-about way that I should cover up (He used a Sylvester the Cat quote, it was really fucking surreal).  I just kind of smiled at him and told him "Oh, well thank you I haven't heard that one before" and went back to what I was doing.  The cringiest thing is that his wife was standing nearby.  Did I make a spazzy post about it afterwards? Nupe.