Well whether it be worms crawling in or out Rupert have you never read 'The Ruin' poem written by a Saxon in the 8th century about Roman Bath (and I'm not arguing about which city it is) its Bath....

"This masonry is wondrous; fates broke it
courtyard pavements were smashed; the work of giants is decaying.
Roofs are fallen, ruinous towers,
the frosty gate with frost on cement is ravaged,
chipped roofs are torn, fallen,
undermined by old age. The grasp of the earth possesses
the mighty builders, perished and fallen,
the hard grasp of earth, until a hundred generations
of people have departed. Often this wall,
lichen-grey and stained with red, experienced one reign after another,
remained standing under storms; the high wide gate has collapsed."

and it goes on....

Expect they all had one too many at the local...