I work in construction where the health and safety Gestapo are continually thinking of ways to shut down the industry. However, IMHO one of their better regulations is the wearing of Hi-Vis vests. The easier you are to see, the less likely you are to be flattened. I always thought that aviation was very much a "Safety first" industry, clearly, many disagree. At Cranfield the club has Hi-Vis vests (BA Ones !) hanging on the door. It must take at least 10 seconds to take one off the door and put it on. For your free vest bearing the name of my company, PM me !