The web has rightly been going crazy for the text of an anecdote by Hithchiker's guide author Douglas Adams. Here he is telling the story live on the David Letterman show in 1985. (Skip to 2 min 50 sesconds. H/T John Rentoul)
Padraig Reidy is the editor of Little Atoms. He is Director of Editorial at 89up and has written and ghostwritten for The Evening Standard, The Guardian, The Observer, The Irish Times, The Daily Telegraph, The New Statesman, The Sun, and The Irish Post.