"Don't leave me, Bertie. I'm lost." "What do you mean, lost?" "I came out for a walk and suddenly discovered after a mile or two that I didn't know where on earth I was. I've been wandering round in circles for hours." "Why didn't you ask the way?" "I can't speak a word of French." "Well, why didn't you call a taxi?" "I suddenly discovered I'd left all my money at my hotel." "You could have taken a cab and paid it when you got to the hotel." "Yes, but I suddenly discovered, dash it, that I'd forgotten its name." And there in a nutshell you have Charles Edward Biffen. As vague and woollen-headed a blighter as ever bit a sandwich."