Flytipping - a guy with a pickup truck of stuff - old brickwork, concrete chunks, general rubble can't be bothered to use the official dump so looks for a roadside, farmer's gateway, bit of apparently unused land, and tips out his rubble there, and then flits fast. He tips on the fly, I suppose. It can be very organised. Large trucks big enough for collecting grain from combines full of builders waste working in pairs to break into locked areas. Or disorganised. One guy emptying waste paint from his boot into a verge and all over the road. It is very antisocial, and illegal. Few fines though, as they don't get caught.

In this case, Mars Rovers fly there, and have then, effectively, been tipped.

Penny