Just to give credit where it's due, a couple of months' ago, our local postie in Peckham came to the church office because he had delivered to a house where the keys were in the door. He had knocked but got no reply but knew she was one of our ladies. Indeed, she is very deaf and had recently come out of hospital. He and I entered together and found her safe, but very exhausted and collapsed on a sofa. She could have been burgled or worse had it not been for the darling postie taking the time and trouble to do something.