My therapist is sharp. He interrupts me if I'm going on about something that doesn't have therapeutic value (I.e. related to treatment goals that I made in the 2nd session). And instead of interrupting me and redirecting me to talk about something else, he politely interrupts and brings up content from the last few sessions, ties it all together and presents to me patterns that I was totally unaware of. Stuff that makes me better at being independent and sociable, because I have a thing about paranoia and trust.