I'm sitting here at my desk, trying to get some vaguely complicated accounting done. I am easily distracted, actually fairly useless. My head is foggy and a little achey. What's wrong with me, I wonder? Is it the grey skies? Not enough coffee? Perhaps I have a tumour? It took me nearly 30 minutes to figure out that it's most likely all the beer and sake I drank last night. Is this how Japanese salarymen feel everyday? It's a wonder anything gets done over there at all.