4. Pug
Pugs master the art of the guilt trip through their naturally worried expressions and penchant for shadowing your every move. Their entire existence revolves around physical proximity to their owners, a trait cultivated by ancient Chinese emperors who bred them as lap warmers. If you shut a Pug out of the bathroom, you will hear pathetic scratching and heavy breathing under the door. They use their unique facial structure, complete with large eyes, to effectively guilt you into sharing every meal.