Risk assesment in the means of reducing the risks , probability and possible damages is a very effective way to decrease risks and accidents. However in industries where risk assessment is used daily for every non standard job or after every incident as corrective actions, these actions sometimes start living there own lives where people has to change without knowing the correct reason and for which purpose. Feedback is rarely requested and many items become obsolete or besides the point after a while. Many simple things become difficult . Therefore we should learn from failures of used risk assessment and make sure to review regularly after implementation whether it is still as effective from the beginning on.