The tour company I rode shotgun for down the far west of Cornywall made their bread and butter convincing Joe Public he was for real and would throw you off the top of Tintagel Island for saying that! :-)
It was rather embarrassing for me as the tourists would ask me and I would direct them back to the driver. I was there to show them around the real antiquities not to manufacture a story up!! Didn't go down too well :-)