Not exactly bad advice, but someone given advice and then refusing to listen to it. In a boating building forum(weird, eh?) a new guy started asking questions about building a sailboat. Questions that shouldn't have need be asked if he knew anything about boats in general. Claimed to be a teacher. Our first suggestions were to take a sailing class, read some books on building, and buy a set of plans. He was thinking otherwise. He had already started building a boat of his own design, but needed to know where to put the keel. (For you non sailing types, the keel is pretty important in a sailboat), and if he had ever even been in a sailboat, he might have a clue as to where it needed to be and even what it does. He further claimed that he was going to learn to sail in this boat he was building. To this day, we're not sure why a teacher was so against learning, especially where lives might be endangered.