We're going to rent a house for a year while we're between houses and many rentals here have nice wood floors in all the common areas. Real wood, not laminate fake wood. Will our 75 pound boxer destroy the floors from claw marks? Any precautions we can take? I'd hate to ruin the floors or loose my deposit. The owner had a dog, there is a dog run out back, but the wood floors are in good shape. Never had wood floors before.