Well, our minds can't come up with the Solution.
Telling someone we want their toxic behavior to "stop" only makes them do it more.
I ask questions eye to eye with courage - sometimes in front of others. "What exactly do you mean by that?" Or, "You're jot saying I'm the problem around here, are you?"
Then I be quiet - and I let them answer.
However we need to start getting well first through the steps to do this.
Each situation calls for a different response.
Not a reaction, but a response. IOW, don't over yourself and swear and name-call.
Sometimes I have to say what I mean, and mean what I say, and say it REAL firm.
I do away with what the toxic predator just said to me. I leave it on them.
Responding is something we come to practice with the help of a very experienced sponsor as we do our own step work.
Cuz if I were to react, that would a wrong on my part.