Bunburying was, until just now, shamefully unknown to me, which led me down an Oscar Wilde rabbit hole to an article about The Importance of Being Earnest with this delightful footnote:

Wilde himself evidently took sandwiches with due seriousness. Max Beerbohm recounted in a letter to Reggie Turner Wilde's difficulty in obtaining a satisfactory offering: "He ordered a watercress sandwich, which in due course was brought to him: Not a thin, diaphanous green thing, such as he had meant, but a very stout, satisfying article of food. This he ate with assumed disgust (but evident relish) and when he paid the waiter, he said: 'Tell the cook of this restaurant with the compliments of Mr Oscar Wilde that these are the very worst sandwiches in the whole world and that, when I ask for a watercress sandwich, I do not mean a loaf with a field in the middle of it.’”