Oh My God, I have been there. I so understand this. It also made me laugh more than anything else today. (h/t Orac)
Dog: I am starving.Full Text Here.
Me: Actually, no. You aren't starving. You get two very good meals a day. And treats. And Best Beloved fed you extra food while I was gone.
Me: I saw you get fed not four hours ago! You are not starving.
Dog: Pity me, a sad and tragic creature, for I can barely walk, I am so starving. WOE.
Me: I am now ignoring you.
Dog: Did you hear me? I am starving.
Dog: Are you seriously ignoring me? Fine.
[There is a pause, during which the dog exits the room in a pointed manner.]
[From the kitchen, there comes a noise like someone is eating a baseball bat.]
Me, yelling: What the hell are you doing?
Me: *makes haste for the kitchen and finds dog there*
Dog: *picks up entire raw sweet potato, which is what was causing the baseball bat noise, and flees for the bedroom*
Me: *chases dog, retrieves most of sweet potato, less the portion which has disappeared into dog's gullet*
Dog: See? STARVING.
Me: ...That can't be good for you. It's a RAW SWEET POTATO.
Dog: I had to do it. I haven't been fed. Ever.