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. In honor of Comic-Con kicking off today, check out these inappropriate and sexist vintage comic book moments!