Doesn't matter where you live, if no one is on the street to see it how can they help? At least one woman and her son were witnesses and a nurse was soon at the scene, no consolation to the Lady in question I know.
On the subject of retaliation...I say leave him in a locked room with some angry blokes
and tell them to imagine it was their nan.
Just for the record I live in Central Birkenhead, by the Park, and I like it.