Were you aware that everything you ever needed to know about motherhood can be found scrawled on the grimy walls of various public restrooms? Okay, not REALLY, but there's a startling amount of decent parenting advice that's been shared via bathroom graffiti. Yes: bathroom graffiti. As in, the things people write while they're … um, privately occupied.

Look, I realize you think I'm completely insane and that I'm about to try and trick you into looking at a bunch of offensively crude anatomical drawings, but trust me: I totally suggested that angle and my editor turned it down. So here instead are 8 bathroom graffiti messages that are surprisingly heartfelt …. and even more surprisingly, completely on-target when it comes to summing up parenthood.