Just because there wasn't a study doesn't mean it won't give you cancer? It also doesn't mean that it will. There is no study that shows sleeping does or doesn't give you cancer either but are you going to stop sleeping because it could? Rain-X is designed to be applied to the windshield where it will never come in direct contact with skin? Really? You have never touched a windshield in your life or never seen anybody else touch one? Slather some mercury? Just because he isn't afraid of everything in the world doesn't mean he is going to do something that is proved to hurt us. By all means live your life in fear of everything as it's your life but I am going to live life avoiding known hazards and enjoying whatever I can without constant fear. If living this way ends up shortening my life slightly so be it because I actually got to live life not hide in fear of it.