My definite favourite one I've heard on a tape I have (I can't remember what it was now..maybe foreplay?) because I've never been to a live concert *sigh*...my parents did in 1994 in my home town, but I was only 10 at the time.
Paul: "A guy yelled out if we'll play something he knows...well I'd say by now young man, if you havn't know anything by now then..."
Neil: "How's it going back on the Stage?"
???: "Good"
Nick: "We missed you"
Neil: "Okay now I've gotta tune"
Nick: "Why did you go off stage for?"
Neil: "To find out what tuning I was in"
Paul: "Are you like this in bed Neil? You know, it's like: Um, I'll be right with you hang on I've just gotta brush my teeth. Oh, why don't you just start without me, I've gotta put on my pyjamas"
Neil: "You seem to know that quite well Paul"
Paul: "We shared rooms for two years"
Nick: "No, no...no, right?"
All before Whispers and Moans, which is only good when its live.