BJSS are a great bunch of folks. I can say that because I've met quite a few of them. They came over to Hull from Leeds to run a programming challenge event type thing in our computer labs. With free pizza and drinks. It was excellent. They posed an interesting task and the students who came along set about solving it. Then they wandered around giving comments and advice on coding and having chats about CVs etc.
It was great to have a professional perspective on problem solving. I even had a little go myself, until my natural laziness took over and I reverted to chatting with the BJSS folks about board games and stuff. As you do.
The students that came along had a great time, and any time BJSS want to come by it would be lovely to see them again.