Today’s news reminded me of a December 2013 article from the Economist:
Between August 1916 and January 1917 Cobden-Sanderson, a printer and bookbinder, dropped more than a tonne of metal printing type from the west side of the bridge. He made around 170 trips in all from his bindery beside the pub, a distance of about half a mile, and always after dusk. At the start he hurled whole pages of type into the river; later he threw it like bird seed from his pockets. Then he found a small wooden box with a sliding lid, for which he made a handle out of tape—perfect for sprinkling the pieces into the water, and not too suspicious to bystanders.
Those tiny metal slugs belonged to a font of type used exclusively by the Doves Press, a printer of fine books that Cobden-Sanderson had co-founded 16 years earlier. The type was not his to destroy, so he concealed his trips from his friends and family and dropped his packages only when passing traffic would drown out the splash.