My current T very often tells me something about himself but its more like sharing experience about something or opinions. Im not interesed mostly but acting like I am. But it helps me to open myself if T sometimes says his thoughts etc. If he started to tell me about his life and it wanst similar ti things we talk about but offtopic about him I would be annoyed. If it was once (maybe it was) then itsokay but if he told about it every session I woudnt like it.