Domestic cats differ from feral cats in that they are fed by their masters and live a life free of concerns about food and shelter, while feral cats face the elements and hardships every day, with the slightest carelessness leading to mortal danger. This situation decisively influences their willingness to be part of the Kitty Corps.
To Marvin, winning over both domestic and feral cats was essentially a battle of the mind. While feral cats might join the Kitty Corps in exchange for food, shelter, and security, it was not a given with domestic cats.
Taming a domestic cat required a different approach.
First, establish a stance, garner approval by agreeing with the other party, then subtly deflate their pride by pointing out minor errors to elevate your own status covertly. Following that, use an advisory approach to lower their guard, entice them with grand promises, and lead them into a mental trap....
Invite them, behead, and make them your own dog.