I think I've seen that… is it the one where a guy was working with John and the guy hit his head, became confused, and said, "Am I in The Beatles?" to which John replied, "Yes, you are, Ringo, now get up, we've got a show to do" or something like that?
YES! That's the one! That part was funny. Not that he hit his head and it was bleeding, but what John said! LOL