It's wrong to abuse animals.
Luigi has been grounded and is in his room brooding while his pet dog looks at him.
Luigi wants to get out some of his frustration about being grounded.
Luigi decides that mellowing out is the best course of action and curls up with his dog and listens to some music.
Luigi hurls his shoe towards his dog using it as a target of his problems.
Luigi's dog enjoys the attention and its trust in Luigi grows.
Luigi's dog grows to fear Luigi and lives an uncomfortable life.