I know this question seems to be a little out there, and I might not be in the right forum, but here it goes. I have a friend that has a 2008 Ford F350 pickup with a stainless steel Fisher snow plow that has developed a problem with rust spots all over the truck. Rust is even showing up on plastic trim pieces. He previously had a painted steel blade on his truck and never had this problem. Is it possible that when he is plowing the snow, the snow/dirt/sand/salt (whatever is in the snow) running across the stainless steel might give the truck a positive charge. Then the metal wear bar at the bottom of the blade is wearing off on the concrete and small metal pieces (with a - charge) are being attracted to the + charged truck? Confused plow owner.