My aunt had a Chow when I was about 5 or 6. My grandma brought her cat over one day. I walked into the backyard by the swing and the cat snuck out behind me. I heard the dog growl so I turned around to see why. That dang dog chased the cat straight toward me. It freaked out and climbed up my leg, up my back and onto my head, claws the whole way. The dog was growling and jumping up on me trying to get it. The cat did about 3-4 laps around my head before launching itself off. I had more scratches and scrapes all over me than you can imagine. Looked like I ran through a thornbush at warp speed.
It was a lot like that video where the squirrel climbed up that dude's back and he couldn't sling it off no matter what,

, except add in a mean ass chow trying to climb to the top of my head and a 6yo screaming like it's the end of the world.
Between that
and a couple other questionable experiences with that dog I've hated chows ever since.