He has been called 'the Mole Man of Hackney'. For the past 40 years, William Lyttle has dug an extensive maze of tunnels - right underneath his million-pound house. Neighbours of the 75-year-old have now started to complain about his incessant digging. And the council is concerned that the street outside is now so unstable, a giant hole could open up and a bus could fall into it. So they have sent builders to secure the site and an engineer will decide whether the house will have to be condemned.