Any coincidencce is worth noticing. You can throw it away later if it is only a coincidence.
Agatha ChristieThen there are some minor points that strike me as suggestive - for instance, the position of Mrs. Hubbard's sponge bag, the name of Mrs. Armstrong's mother, the detective methods of Mr. Hardman, the suggestion of Mr. MacQueen that Ratchett himself destroyed the charred note we found, Princess Dragomiroff's Christian name, and a grease spot on a Hungarian passport.
Agatha ChristieThere was a moment when I changed from an amateur to a professional. I assumed the burden of a profession, which is to write even when you don't want to, don't much like what you're writing, and aren't writing particularly well
Agatha ChristieSelf-preservation's a man's first duty. And natives don't mind dying, you know. They don't feel about it as Europeans do.
Agatha Christie