Duck decoy : a pond into which wildfowl are lured for capture. If needier times present themselves , this would be wise knowledge to have. When I remove the tin-foil for the coonskin cap ! I was just reading last week about a true to life character from Missouri , attacked by Grizzly in early 19th century, cleaned Gangrene out of his back by busting up a rotted log laying on it and allowing maggots to clean the wound.