Yep, very violent. My sister has an autistic daughter and when her meds were on the fritz, I was being called out of school everyday just about because police were at were my house. I witnessed her daughter try to suffocate her mother by putting a plastic bag over her head, almost try to break her neck by sitting on it and jumping at the same time. she ripped the deadbolt off my front door with her bare hands, along with my garage door lock with her bare hands. I mean it was like looking into the abyss. Her daughter seems to have gotten better by being in a home away from her mom and being placed on the correct medications because she did save her mother when she had a stroke on the highway. Without her help and call to 911, my sister would be dead right now. However, that was scary time when she was living with me. There were times where I had no choice but to have her arrested.