But probably the most disgusting trait of the Grinch, is his terrible flatulence. That's right, his farts. Due to his poor diet and lifestyle, the Grinch would be prone to terrible gas issues. It's estimated that the Grinch passes gas roughly thirty times a day, more than twice that of the average human. Whether when he's relaxing in his chair, walking around his cave, or laying in his bed, his noxious gas always finds a way to escape. The sounds alone are enough to make anyone cringe.