i ever saw was this specially counter-weighted stainless steel dump platform over a huge
barrel of water with "hundreds" of dead field rats floating in it.....friggan rat stew.
as they walked along it would silently dip and dump them into the rat Vat....so effortlessly.
and they couldnt scramble back up because it was way to slick.
(this was in australia where marsupials rule the night....)
