We had a large tabby Tom who would ride large dogs—Dig his claws in and ride them like a bronco as they pirched and tried to get him off. They would roll, he would jump off, when they righted themselves he would jump back on! He was a fearless Cat.
But when my mother was having her chemo for cancer, during the infusion, she'd lay in a recliner, he knew how badly she felt, and would stretch out on her lap, putting a paw on each side of her neck, and just snuggle and nuzzle her neck during the sessions, for hours at a time. When she didn't come home from the hospital, he never recovered, and pined for more than a year, before running away.
Mark