Paddy and I had scarcely a wink of sleep, for there was a man near us who had some nervous trouble, shell-shock perhaps, which made him cry out 'Pip!' at irregular intervals. It was a loud, startling noise, something like the toot of a small motor-horn. You never knew when it was coming, and it was a sure preventer of sleep.... he must have kept ten or twenty people awake every night. He was an example of the kind of thing that prevents one from ever getting enough sleep when men are herded as they are in these lodging houses.'

Ch. 29 - Down and out in Paris and London (1933)