There is a device called the Electronic Scarecrow www.scatmat.com about $79. hook up a hose and motion or infrared sets off a jet of water. I got it in my garden and not a leaf was eaten by the herds of deer and rabbits. My neighbor's lawn tractor at 100' away sets off the infrared sensor due to the engine heat. Place it where they can't steal it though like up high somewhere. [img]/forums/images/icons/shocked.gif[/img]