Toulouse would wrestle, not just play but wrestle, with my 50 pound dog. I saw him reach around Chester's neck, twist, and roll the dog over. He lived on the street by himself for a number of years in an area with Great Horned Owls, coyotes, mountain lions, and bears. He was a bad ass.
Diego listens better than our dogs, which is why she has a male name. Long story.