Every story has a hero and every great one has a villain. Some are dark, some are titans. Mine was a green stain.I know. I know it sounds ridiculous, but I'll explain what I mean by that through a story. Because my dad works in construction, I ended up spending many weekends at building sites.From these many, many weekends, I remember one specific incident. A Saturday was like any other. I hopped into the car.We walked around the building and we were just about to leave when my dad spotted it. Green stains ...