I was always doing things like that with my Mum. We would both just speak at exactly the same time about some random subject. It`s like our thought processes were the same. I also used to do it with a friend of mine on the other side of the world. I think it happens with certain people that you are tuned into.
I have done that many times as well. Bearing in mind that there are several thousand of us at work and I can work with someone and then not see them for ten years, sometimes someone`s face will come into my mind and low and behold, I will see them at work the next day. That has happened many, many times.
I was once driving along a road I'd never been on before, trying to think of the surname of a bloke, Richard something or other, that I used to work with years ago. I drove through a village, and noticed WEAVER'S BAKERY ( the only shop front I took any notice of)....... You've guessed it, his surname was Weaver. I nearly crashed!!!