I was wondering if anyone knew if the stuff they sell to melt ice/snow on pavement is safe for dogs? The package says its "safe for pets" but I want to check to make sure. I am sure he will get it on his paws and end up getting some in his mouth. The ice in my driveway right now is beyond treacherous! I guess I could use sand instead, although that gets messy when it's tracked into the house.