He was one of a kind, we don't have enough TV presenters that really know their subject like he did. He put himself through trials and I always thought of him as genuine. His poor wife and children must be wondering what was wrong with him to take on the challenge of walking during the hottest part of the day, when he should have been relaxing or having a siesta. I have a theory that this walk was another of his experiments because he must have known, when he set off, he would be 'pushing' himself, esp at his age. If not, I can only assume, his lack of judgement that day was due to something else. He reached Pedi but chose to carry on walking. His wife said he nearly made it, which is a strange thing to say (understandably she was in shock, but nevertheless I think he was possibly a bit of a stubborn person and may have been warned by her not to take things too far that day).