I have a big dilemma and I need some of your opinions. We have been close friends with our neighbours for the last 15 years, I have wine o'clock every Friday afternoon with Sue and go away every year for a girly holiday. They have right of access through our drive and last Saturday, they employed 2 people to pressure wash it. Problem is that they washed all the crap off their drive onto ours, our house and garden. My windows and car needed washing, my block paving was covered in dirty greasy sludge and my front garden has a 3 inch layer of sand all over it. Needless to say we weren't happy and spent 3 hours cleaning up the best we could. He eventually swept our drive but shouted at me saying it was my fault for listening to his wife who was allegedly going to clean it up. Now this has obviously damaged our relationship and I dont know whether or not to end our friendship. Everyone I have spoken to says what they did was unacceptable but they seem to think its OK. They do have drains on their drive or there is a public footpath at the front which could have been used but they opted for our property. What should I do?