 we went over everything you could possibly need to know. That class lasted four hours. There are lots of questions, which I love. There are times where I'll teach the class and people will have questions about all sorts of things. Some things I can't answer. I don't know the chemical ingredients for epinephrine. I know it's a lot of adrenaline. But, you know, I'm not going to be able to do that. But I'll always look it up. If you have a question that seems...