I'm sorry hom, you can't kill an alter because you will be "killing" part of yourself which can't happen.

I've put in special requests for Others to stay back and I would try my best to control the triggers that releases them. I've also wrestled for control and have one because we are all equal here. When one gets cocky...I have to knock them down a peg or two.

You can do it. Have your other Others help you restrain the unwanted one. We do that to the Angry One. I avoid the triggers and feelings of being wronged and hope the Others hold him down...and it does wotk. Him getting triggered is usually a surprise thing, but when I expect it, we can defend against it.

Good luck and have fun!