Those of us who have our water services provided by United Utilities are getting a hosepipe ban starting on August 5th, unless we have torrential rain for at least two weeks before that date!
We've been saving water for an absolute age, using shower water, washing up water etc to fill buckets and watering cans, but obviously some in our area have shown a total disregard for requests to save water.
So, although your neighbour was rude, forgive me if I have no sympathy for someone who was using a hosepipe in the heat of the day when most of the water would just evaporate and therefore do the plants no good at all!