“Thing I object to in detective stories,” said Mr. Piggott, “is the way fellows remember every bloomin’ thing that’s happened to ’em within the last six months. They’re always ready with their time of day and was it rainin’ or not, and what were they doin’ on such an’ such a day. Reel it all off like a page of poetry. But one ain’t like that in real life, d’you think so, Lord Peter?” Lord Peter smiled, and young Piggott, instantly embarrassed, appealed to his earlier acquaintance. “You know what I mean, Parker. Come now. One day’s so like another, I’m sure I couldn’t remember—well, I might remember yesterday, p’r’aps, but I couldn’t be certain about what I was doin’ last week if I was to be shot for it.”
“No,” said Parker, “and evidence given in police statements sounds just as impossible. But they don’t really get it like that, you know. I mean, a man doesn’t just say, ‘Last Friday I went out at 10 a.m. to buy a mutton chop. As I was turning into Mortimer Street I noticed a girl of about twenty-two with black hair and brown eyes, wearing a green jumper, check skirt, Panama hat and black shoes, riding a Royal Sunbeam Cycle at about ten miles an hour turning the corner by the Church of St. Simon and St. Jude on the wrong side of the road riding towards the market place!’ It amounts to that, of course, but it’s really wormed out of him by a series of questions.”
“And in short stories,” said Lord Peter, “it has to be put in statement form, because the real conversation would be so long and twaddly and tedious, and nobody would have the patience to read it. Writers have to consider their readers, if any, y’see.”
“Yes,” said Mr. Piggott, “but I bet you most people would find it jolly difficult to remember, even if you asked ’em things. I should—of course, I know I’m a bit of a fool, but then, most people are, ain’t they? You know what I mean. Witnesses ain’t detectives, they’re just average idiots like you and me.”
“Quite so,” said Lord Peter, smiling as the force of the last phrase sank into its unhappy perpetrator; “you mean, if I were to ask you in a general way what you were doin’—say, a week ago today, you wouldn’t be able to tell me a thing about it offhand?”
“No—I’m sure I shouldn’t.” He considered. “No. I was in at the Hospital as usual, I suppose, and, being Tuesday, there’d be a lecture on something or the other—dashed if I know what—and in the evening I went out with Tommy Pringle—no, that must have been Monday—or was it Wednesday? I tell you, I couldn’t swear to anything.”