Reminds me of that story of the bloke in the looney bin who claimed he was jesus, and therefore he was dead.I suppose it could be that they're lying; it's more likely that the writer went on a course and can't bear to face the fact that he's paid to be misled. It happens a lot.
Doctor: Do corpes bleed?
Looney: Of course not.
Doctor pricks looney with needle, and of course, a drop of blood appears.
Looney: Bloody liars those doctors; corpses do bleed.