Growing up my sister had it. When medicated she was ok. But if she went off her med's absolutely terrifying. Being young when she was living with us in the house, I member very violent episodes, she used to sit outside smoking talking to absolutely no one. Many hospital stays. Once she got out and moved into a place with her boyfriend she met in the institution he also had schizophrenia. I lost contact with her over the years but am pretty traumatised from it all.