Fantastic Fables by Ambrose Bierce: The Thistles upon the Grave
The Thistles upon the Grave
A MIND Reader made a wager that he would be buried alive and remain so for six months, then be dug up alive. In order to secure the grave against secret disturbance, it was sown with thistles. At the end of three months, the Mind Reader lost his money. He had come up to eat the thistles.