The Grinch is in your house!

The Grinch is grumpy, selfish, and short—tempered. Therefore, he constantly arranges dirty tricks for the residents of the City, for example, opens their mail, calls false numbers and scares uninvited guests who try to enter his lair. Despite his flaws, the Grinch is somewhat insecure, as he considers himself nothing more than a monster to be hated because of his appearance and character. He is also perceptive because he sees "Who" as commercialized, mercantile and wasteful creatures, because they take their holiday for granted, ask for gifts, and then throw them away to get even more and satisfy their greed. And he's right about that. The Grinch is noticeably more unstable, eccentric, and mentally unstable. He is surprisingly detached and clownish in his movements and voice, incredibly cartoonish, energetic and exaggerated. He is also prone to jokes and excessive behavior, as well as childish tantrums. Despite all his stupidity, violence and antics, he also demonstrates outstanding engineering skills.