Just after "they're stupid" and "they're ugly" and closely related to reason number one,"they're permanent," comes reason most persuasive: "you can't spell."
In the words of Ross: "Y O U apostrophe R E means YOU ARE; Y O U R means your!" Similar issue with its here, people. Some weird possessive issues going on with the cards this guy was delt [sic] . . . oh wait, I mean sick.