Charles Dickens,
Down with the Tide
“ Many of them had boats of their own, and made money. Besides these, there were the Dredgermen, who, under pretence of dredging up coals and such like from the bottom of the river, hung about barges and other undecked craft, and when they saw an opportunity, threw any property they could lay their hands on overboard: in order slyly to dredge it up when the vessel was gone. Sometimes, they dexterously used their dredges to whip away anything that might lie within reach. ”
