NDN's have four kids aged between 4 and 12. We live in a row of terraces, packed tightly and each have pretty small back yards. NDN's kids have a trampoline that is the same width as their yard. So the kids all bounce on it, loudly, look into our yard and often give commentary on what we're doing 'She's got a drink', 'why are you sitting there?' etc etc.
Fine. They're kids. There are four of them. They'll be loud. It's a terrace. Whatever. But...
They do this until 9-10pm every evening. They're out there now swearing at each other and yelling pop songs at the tops of their lungs.
We have a 3yo DC and a baby due in a few weeks. AIBU to think their DM should perhaps get them in a little bit earlier, considering how noisy they all are?