I have never had an emergency session. I haven't really talk with my T about what a crisis looks like. If you consider strong urges to act on suicidal thoughts, then I've had many crisises this year. I've dealt with them by myself. And I haven't talk to my T or pdoc about it, which I probably should do.
I can only call my T during her workhours. I can email her anytime, but I think she only anwsers emails during workhours. So if I have a crisis with suicidal thought/urges and act on it, I should call my doctor or the alarmnumber.
But the chance that I would call anyone is very very slim.