 What they don't know how to do is what we do, is come up with that better, easier, and safer. There's always a chain right through the life cycle of a product, just like the life cycle of life. There are people that, I can't remember the last time I self-diagnosed myself and was correct when I went to the doctor and they said, what college did you go to and when did you become a doctor? But I have doctors that ask me about my world and developing a product.