Thursday morning approx 4.15am. On my way to work. Just crossing Cranes Park into Villiers Avenue when I saw three black teenagers separating. I saw one had a small claw hammer in his hand, whilst the other two circled behind me. I was relieved of £10 from my wallet. They wanted my mobile phone, but as I don't own one they were dissapointed. They even handed me back my Sony Walkman, so I must have very poor taste even for muggers.