Yesterday morning I awoke in crumpled clothes on a strange sofa, my mouth feeling furry and unwashed. I’d crashed there at about 5.30 am and only snatched a couple of hours of fitful sleep. As I gazed blearily at unfamiliar surroundings, a woman I barely recognised appeared and asked if I’d like a cup of tea. I nodded and mumbled thanks. Partying hard in the run-up to Christmas?