Aided by his pet dog, Max, he disguises himself as Santa Claus and breaks into the Whos’ homes to steal everything they own and dump it off a nearby mountain. Although he pulls off the theft successfully, on Christmas morning, he is shocked to hear the Whos still singing cheerfully, happy simply to have each other. He then realizes that the holiday has a deeper meaning that he never considered. Inspired, he stops the Whos’ belongings from falling off the edge of the mountain, and in the process (according to those who speculated upon the size of his heart before) his heart grows three sizes. He returns all the gifts he stole and gladly takes part in the Whos’ Christmas celebration.The Grinch is still portrayed as a bitter and ill-tempered character in artwork or other media. In both the animated TV special and the 2000 live-action film, he is shown to have superhuman strength when he stops an entire sleigh loaded with presents from going over a cliff and lifts it over his head, and he is also described as “[finding] the strength of ten Grinches plus two” (a phrase lifted from the original book) during that moment of crisis. In the 2018 film, the Grinch has assistance saving all the Whos’ stolen goods.