kiya if I remember right your treatment providers (therapist...) knows you have this violent/unpredictable insider... what do they say to do in these situations? have you tried their ideas and then gotten/given feedback so that they can help you and this insider to become more stable?

reason I ask is because treatment providers that we see on a regular basis or per scheduled appointments are usually in a great position for knowing all kinds of therapeutic ways to help insiders.

example maybe the next time you are with this treatment provider you can ask them to ask that non verbal violent alter to draw a picture or point to a picture of what they need. one this was a suggestion my own treatment provider had when I had a non verbal /violent alter...building a communication folder (this is something that treatment providers usually do with autistic clients so many people with DID usually dont know of this therapy technique because its not something that you can find out by googling DID therapy stuff) how you do it you gather newspapers, magazines, paper, pens, crayons, what ever you can think of. and a bound notebook or a hole puncher and metal or plastic ring. then you cut out pictures words and write /draw pictures. then you either glue those into the notebook or on a cut out paper shape. if glued on paper shapes (usually squares work better) after the home made word/picture cards are dried of glue you take duck tape over them to make it stronger and durable. then the non verbal child with autism (or in this case a non verbal insider) can point to the pictures and communicate through the use of the word picture cards.

my suggestion treatment providers have all kinds of ways to deal with non verbal clients so they are in a really good position to tell you all kinds of therapeutic ways to handle non verbal\unpredictable insiders. give your treatment providers a try. if you dont feel comfortable telling them this alter is so out of control again you can just out of curiosity ask them if they have any autistic non verbal clients how do they manage to talk with them. or even deaf/ mute clients. treatment providers have to deal with being able to communicate with the deaf and mute too