I once had a pretty young lady sitting on my couch. Just when I put my arm around her the crazy cat ran across the wall and bit her on the back of her head and stayed like that for a couple of seconds while she screamed. I stood, waved my arm at it and then it dropped and ran out of the room. Never saw her again after that.
I kept a loaded water pistol to protect myself.
I’ve seen that. Cats are so fast that they can use the vertical surfaces (walls, etc) in a room or on the outside of a building in a mad dash to get from point A to point B.
From the pictures you post of your family I’d say you owe that cat a can of tuna!
That was the cat’s cute idea of getting in on the act. It was a love bite.