I had already made my mind up that I was working from home no matter what they said to me. I too would have to use public transport (trains) and I work in a building of around 3-4k people. There’s no way I’m going in since I have no calls to answer and can do literally everything from anywhere where I have an internet connection and a laptop. At some point, surely we just have to put health first? We’d still be doing the work and are following government advice. I’d say that trumps the opinion of a boss, but I don’t know how it would play out! Would be a very harsh disciplinary imo.