Found out he was on his final written warning yesterday and now he's at home. Apparently work was not his primary source of income (runs an internet business on the side from what I can gather), so he's okay at it were.
Even so though, it's still not exactly the greatest time to be handing in your notice. He could have stalled/appealed and done other things but he can't be arsed.
I'm on holiday for a few days but he's just got in touch with me to tell me it's now a done deal as it were.