All-over-it dog lovers know the basics of keeping dogs safe in summer: Bring lots of water with you on walks, watch for the signs of your dog overheating and never, ever, ever leave a dog in the car - even on days that don't seem that warm. But it might come as a surprise to even the most type-A pup owners that the very pavement beneath your dog's paws could be sizzling hot. And hot pavement can have gruesome and painful consequences. "Asphalt gets very hot and can burn your