Little kids shouldn't have bikes, grown men shouldn't iron shirts, and even littler kids shouldn't live in the same house as a shiny razor. Those are the most grisly lessons learned from the sometimes funny, sometimes horrifying AskReddit question, "What's the stupid reason you have that scar?" Of course, there's also the one about the fetus who ate his own poop, so there's a little something for everyone.
In case it goes without saying, don't read these stories if you don't like reading about injuries. Because there are a lot of blood, cuts, and...well, things that lead to scars.