There was this sailor who always did extra knots and shit on his ropes and lines. Because he wanted it to be extra safe. Then in a storm the ship sank because

There was this sailor who always did extra knots and shit on his ropes and lines. Because he wanted it to be extra safe. Then in a storm the ship sank because he couldn't undo that shit quickly enough. I guess you can tank your software project too by too much or wrong testing.