Dad's been having a bad week, so I thought I'd try hard to make his day a pleasure. He spent the morning and early afternoon at day care - and had an enjoyable outing to the nearby lagoons. I waited at home for him, and then took him out for the rest of the day - to see some of his doctors. Not a bad way to spend a day, given his recent run of bad luck.

The first doctor was the dermatologist, Dr Tibia. On the serious side - the suspicion that dad is developing skin cancer - there is little to report. The good doctor examined dad's skin and took a sample. I am to call him on Friday for the result. On the lighter side...he took one look at dad's height and asked if he used to be a rower. By sheer coincidence, dad and I had just been talking about dad's epic row to the Nova Scotia coast, after being torpedoed in 1942. Dad mentioned this, and then the three of us had a good long chat about U-boats, the Laconia incident, and North Atlantic meteorology. It was all very blokey and enjoyable.

Next stop, Dr Femur, the GP. Quick prod and poke and the verdict is clear - dad has a broken rib. No treatment, just be careful. I nip out and buy some Chelsea buns and we have afternoon tea with mum before I head off for dinner with Greg and Regan.

The crux of the matter is this: mum's 'slapping' of dad is much more serious than supposed. Greg surmised that she kicked dad in the back on Sunday, but the fact is that we do not really know what happened - none of us was there and no-one saw it on the webcam. All we know is that dad was struck a blow hard enough to break a rib. I think we now have to face the immediate necessity of medicating, or doping, or tranquillising - whatever euphemism we choose to use - our mother. Unless we do, we are consigning dad to a continuing level of torment I am not prepared to endorse.

Drugs now seem to be the lesser of the two evils.