On reflection, a couple of my very brief (half a dozen sessions) stints with past therapists have been pretty much all blank slate. Or maybe some would have disclosed little bits and pieces if I'd been with them longer? I don't know.

My T does disclose stuff, whatever she deems to be appropriate - and I distinctly remember the first particular thing she told me which made me appreciate she had once been somewhere similar to me in relation to a particular issue - and I just though 'oh, I see - now I know why you get this' and part of me relaxed a little.