Tattoo artists have seen things. We're not just talking butts, boobs, or other oft-covered body parts. They've seen bad, bad decisions immortalized on humans who just want to watch the world burn. And while there are plenty of sites that feature bad tattoos , sometimes we like to hear the story behind them from the person who had to do the damn thing. Yesterday, redditor u/carlden3 asked the tattoo artists of the site to share the most f****ed up pieces they've ever done for customers. Some of…