Thursday 1pm. Very tired. Bed last night after 1am due to trauma of physics while creating roller coasters. Slept fitfully and dreamt of negative g-force stresses. Breakfast - porridge (now with added bran). Cups of tea - 3. Lunch - prawn curry. Cigarettes - none so far. Afternoon treat - tinned pears with yoghurt. Need sleep. Tonight's plan - hot bath with bubbles and bed at 10. Plans for tonight doomed to failure because of roller coaster construction addiction - 1.