I have bumped into someone through my work. I'm a nurse and it definitely was not the time or
place to say 'hey guess what I know you from BB'. So no I didn't say anything, it wasnt going to benefit them. Bit like having an actor come in to visit an ill relative and to stand there and try and talk to them about their latest movie ITMS, completely irrelevant and would have upset me f the roles were reversed. I doubt I would bump into this person again due to geographical differences anyway.