nmillar: Okay, I'll go with the boring answer:
Tuna cat food would taste sort of like tuna fish, like it smells. Other kinds of fish cat food, like sardine flavor, mackerel flavor, "ocean fish" flavor, would also taste sort of like tuna fish because the kinds of fish in those have similar flavor to tuna. Salmon cat food would taste similar to canned tuna (for humans), chicken cat food would taste sort of like canned chicken, etc. The cat food might also taste bland, because there's much less salt added to pet food than canned food meant for humans, and pet food is less likely to have things like onion, garlic, herbs or spices added.
That's pretty interesting. I've always wanted to try cat food... sounds weird but they always make cat food look so good in the commercials, that and it being kind of a 'forbidden' food have always interested me. Yes, that's how much I love to eat. In fact once I actually tasted my shampoo because it smelled so deliciously fruity - I would never try that again.
Based on what you said, cat food sounds less appetizing, and perhaps I should just let it go.