At this point you may be thinking: 'Give-me-a-breaak! Seriously?! 'Seriously?!!! These guys have a policy on shoes!?
Well, actually, yes..., based on past experience, we have to. Black shoe scuff marks on fiberglass are basically indelible - only sandpaper really gets them out. Can't do that! Please, only wear white or light-soled shoes, or sandals or barefoot - like on the TV show 'Below Deck'. Now you know why they do that!