Smart Dad. Smart you. Works like a charm, AS LONG AS favorite wet food is fresh enough for fussy kittie. If my old girl won't finish, I add people tuna to sucker her in. My vet says old girls can have some tuna.
By the way, would you ask your Dad about the current epidemic of thyroid condition being caused by pop-top wet food cans? My particular cat is 17, and didn't have the condition until she was fed only "Science Diet" in pop-top cans for four months. She lost seven pounds, so the vet did some homework, and found this information on a veterinary hotline. She is a totally controlled subject, so we sure wonder.