please please report it. like everyone has said he may be on cctv. if no one reports the police cant identify where there is a problem. i'm a police officer and when someone is hit with a brick, i would want to do something about it but unfortunately officers like me wont get a chance to help you and their future victims without the information. East Dulwich police station is often quiet, i've never had to wait to speak to someone. I know people that work on the Peckham Rye and Dulwich Safer Neighbourhood wards and they are both very friendly/approachable. The other option would be to call the police on 0300 123 1212 and they will send someone to the house to see you. Also might be an idea to see a doctor just to check you over. Take care, hope you're not to shaken up PS. I'm sure you already have but call the phone company and get them you cancel it.