I caught the interview by chance he gave to radio Five live on Wednesday afternoon. He said, he didn't want to be away from his family that long and he was under the impression that if someone walked, they had a replacement ready to take their place. I had to laugh when he said, he told the producers the night before he didn't want to take part but he felt he gave the producers enough time to find someone else. The producers spent about 4 hours trying to get him to change his mind and would try to allow him more phone calls home but they could not make any promises. Apparently the apprentices get 1 phone call home a week. Imo I think he applied for the wrong reasons and took the wise decision to walk but should have done it far sooner than then night before.