Have you ever felt that the success is must and you cannot fail? Did you feel stressed?
Most (if not all) people do feel stressed if failure is not an option. What we know about stress is that it limits the our creativity and our capability to see possibilities instead of threats. If your resources are low and solution is needed instantly - isn't it quite obvious that you try something that has been tried before and works for sure?
In organizations where jobs are in danger, showing that projects run smoothly and mistakes do not happen can feel important. Unfortunately this kind of thinking leads into several problems.
Organization stops learning from each other, ability to create new innovations drops and information of ongoing crisis or failures of larger scale can be buried. -And we need to remember that this happens in ALL levels of organization. -We all have somebody to report ;)
Sam Swaminathan tells a story in www.managementexchange.com how one organization was changed by celebrating the Mistake of the Month.