Has anyone ever gone crazy due to marijuana?

It can push schizophrenia. Most people think it's b.s but I think it's true, for example. Meet Joe, a boring dull guy. He gets anxious when he meets people, and he's trying to figure out his life. Joe notices after half a joint or so he's relax, and smooth with people. When he smokes and chills on the couch he gets creative and deep, he has ideas in his head about life to improve and such. Joe thinks this great, so he makes smoking a regular thing. After a year of this, there will be depressed nerdy Joe, and cool comfortable Joe. He'll end up talking to himself, arguing himself thanks to guilt and needs. And whenever something bad happens he'll take it a very bad way, yet remain smoking = insanity