I'd do it if....
Sometimes I'll think of an idea that will seem like an obvious good idea. I'll be afraid to do it though. It could be something as simple as a simple technological design change to a system I'm working on. What stands in the way of me and that change is fear of humiliation. I have thought what I am going to do out, I just can't get over that perception of risk. Usually the best thing I've found for fixing that risk perception is to write what I am going to do down in a series of steps and mull it over for a little bit. Then, if I can't find anything reasonable wrong with it, I'll do it. That's about the best I've been able to do in these situations.