Holy innuendo, Batman! Back in the day, comic books were a favored form of child's play, but who were we kidding? Judging from some of their — unintentionally? — suggestive situations, it's no wonder adults collected these cartoons, too. And don't get me started on the sexist lessons being taught here. As comic book enthusiasts the world over unite at Comic-Con this weekend, check out these inappropriate and sexist vintage comic book moments!