was going out on an outing with her brother. after they had left, the mother started to prepare a bottle for m and asked father to go and get the baby. it is his case that, when he picked m up, he noticed for the first time a bump on the side of her head. he took the baby downstairs to show the bump to the mother. she describes how, when he came downstairs with the baby, the father was 'looking pale and his hands were shaking'. the mother describes the bump as 'huge' and 'something you could not fail to notice'. the swelling appeared to extend from her right 