I'm at the end of my tether. Our attached house - we are in a semi - is rented out and has been since last Aug. They are a group of 20 somethings. The pattern seems to be a party every 3 weeks or so. The final straw came when they had one on xmas eve and it went on till nearly 2 am. Is that unreasonable? What can I do? They never warn us so every Sat we sit anxiously waiting to see if they will have another??? PLease help it is affecting our health with the stress.