No, no BYM. They do the John Wayne/Clint Eastwood walk down the street facing their enemy. (Not mine, I hasten to add!)
I had a friend who took in a stray who earned himself the name "Bad Cat" which apparently caused huge merriment at the vet's when they called for "Bad Cat McCloud" He most definitely would have been a gunslinger!
Nearest I've got to that is two little books; one, predictably, is "How to train your human", the other is "Teach your cat Welsh" which is hilarious, but also useful for someone wanting to learn some basic phrases!