Now come on meowmie, steel yourself against that little kitty face (it's hard, I know) and apply the "tough love" theory! You can't let your "kids" have everything they want or they'll become spoiled. (Oh wait, cats are BORN spoiled. Too late! ) Boy, your kitty sure sounds stubborn - I would think that a few days of hunger would end the tuna-fest.

My kitty goes mental for tuna, too - also for Fancy Feast flaked trout. I remember hearing somewhere that too much fish is not good for kitties, especially boys, since it messes up their urinary tract or something. My kitty is a fish-a-holic though, so I only give him fish-flavored food every 3rd day. I think I'll check out that ASPCA site and see what they have to say about fish.