Here's one near miss story.
Early on in my training some wingnut told me that in a forced landing if you suspect you are not going to make the field raise some flap ? "you'll drop initially but then glide further with less drag" he said. I was inexperienced so guess what I did at my next practise forced landing? I raised the flap and almost took out some trees.
Moral of the story, never listen to anyone other than your own experiences or someone else who can back up their advice with an official piece of paper.