I am a mid terraced house. The house next door is the end of terrace. They have a full width glass (or Perspex or something ) top conservatory. The end of this is a brick wall in my garden next to the kitchen door. They have started hosing their roof with boiling hot water and this is spraying on to my paths. Luckily I am cooking and everyone is indoors.
Would it be unreasonable to expect a neighbour to come and advise the next household of their plans?
They have no regard for any neighbours and assume they have superior rights above all others such as their path is illegal, they have built over the drains and other services and have a hedge well above the roof of the houses.