There seems to be a mutual unwritten agreement amongst my neighbours that each is obliged to keep the collectively owned access street in front of their house free of leaves. The idea is that the leaves in their garden and their portion of the street are deposited in the green rubbish bin. However, I suspect that a lot of the neighbours leaves are ending up on the street adjacent to my house. As I haven't signed their unwritten agreement, I don't feel obliged to shift the leaves any further.