The biggest thing we had when Marshaling was at our location(wont say where) but its quite fast and can be "scary" spectators just wouldn`t listen when we sayed keep up on the bank and don`t come down onto the pavement.Everytime you turned your back they were creaping onto the pavement some people just dont listen to Marshals and get very cheeky but 99% of people are brand new and willing to take the advice of the Marshals on board.