I actually got a little bit annoyed last night so I had some time to think about how I'd go about it. I really wanted to show that I don't look at my emails outside of work hours, especially weekends and that I actually have others things to do when I arrive in the morning that take priority. IE. my coffee and socialising.

They're also knew that I get into work early since we arrive roughly at around the same time so I don't know if they were trying to take advantage of me like that but I'd be damned if I was going to do any work before 8am.