If I am troubled by strong SI I tell t1. He will talk about it as much as I want to. Today I said that I didn't want to talk about it. He did ask me if I would stay safe. I told him probably.
I figure no t's knows what is going on in my head as much as I do, so I bring it up early in the session. I would not like to tell t that I was suicidal in the last few minutes of a session. But for me, it is always hard to leave. I am afraid to do anything to make leaving worse.