Throughout 10 seasons, the It’s Always Sunny in Philadelphia gang — Charlie, Dee, Mac, Dennis and Frank — have proven themselves to be terrible human beings. While they are certainly all evil in their own way–from Dennis’ sociopath behavior toward women to Frank’s lying and money scheming–Mac (real name Ronald McDonald) has a place in hell too. From his self-centered ambitions to his childish temper, Mac adds a layer of flavor to the gang with his own individualistic, cruel traits. Plus, he always has great advice, too. So without further ado, here are eight times on the show that Mac showed us that he was a garbage person.