What would you do in this situation? ....... Basically my house is an old house and a new house was built next door before we moved in, the wall which is our responsibility has become damaged and fallen down, we now understand why, this is because the person who built next door fence used gravel boards and in places nothing to hold the rubble and soil back and this has caused by wall to fall down. To rectify the problem it's costing me money to fix ! Would I be unreasonable to ask our neighbors (who we get on really well with) to contribute to fixing the damage ??