It’s no good – farmers with all their horses chained up to the stones just can’t shift them. Besides this would deprive a demon of his breakfast – if you pour some water into the depressions on the top slab you can guarantee that some fiend will have drunk it by the morning.
At midnight the Devil yokes up 4 white oxen to try and mve it – and even he can’t. (Why he wants to do this when it’s his own den I don’t know). A great white dog watches them from under the capstone, with eyes like burning coals. Or perhaps it’s a giant white rabbit with similar eyes (or a hare? – that seems a bit less soppy?). White animals (with red ears) generally come from the underworld in Celtic mythologies.
(these stories in ‘Folklore of Ancient Wiltshire’ by Katy Jordan)