When I'm working adoptions at my shelter and people like this come in, I get really angry, really fast. I try my best not to be flat out rude, and usually end up saying something like this:
"Well, judging from what you're telling me, I'm not sure a cat is the best option for you. Sounds to me like you don't have much experience with cats and are wanting to adopt for all the wrong reasons. And since you've told me you plan to declaw, we're going to deny your application anyway. Perhaps you'd like to give this some more thought before you adopt a cat."
At this point they are usually very mad, or trying to argue with me, but I've already made up my mind. It's not like they can do anything. I have the power to reject them so they usually try to suck up. If they end up storming out, I'm usually glad, but then I always know that they will probably just pick up some free farm kitten somewhere. That's usually what happens.
SOME PEOPLE, RIGHT? THE NERVE!!!