[Z]

Update: he started interfering with one of my colleagues' workload, she quietly erupted at him and his response was to move back to his original seat next to me (mare); then on Monday he fought with another member of the team because he started doing work that she'd already been working on for over a month; then on Tuesday I discovered someone had put out two bookings in my name on one of my projects - a project I'd shelved because of an IT issue and was waiting to be resolved. That was it for me, I raised a complaint with the manager of another team and now she's moving three of us to desks with her team, thank God. She said I had every right to be annoyed and she was going to look into it for me. The guy ought to be fired, honestly, he's like a bull in a china shop.