He just smirked widely at the comment. "Cat love fish." Seifer replied that that some how justified his deliberately terrible choice of sandwich filling. "You going to tell me that you're not hungry now because it just happens to be tuna? Seems like a waste of perfectly good food to me." And really, making into a sandwich had be a compromise. Originally he was just going to throw the open can in there but decided it potential trouble if the cat decided to eat the can as well out of hunger.