I don't know why it came to me whilst reading the humour forum last night. I was remembering the 'joke' from many many years ago at a party. This guy started to tell it to 3 of us...soon there was about 15 people all listening intently. I kid you not when I say the 'story' went on for over an hour. He told it better than I wrote it and added a bit more humour along the way. When he finished with the non existent punchline he was held down and had about a dozen beers poured all over him.