We’ve tried the usual of calling police (three times), inviting them over to hear how loud it is (they agreed that it was very loud), asking to at least reduce the bass, blasting our own music (not sustainable) and so on. Sometimes it works for a day but inevitably it’s back to the usual.
Hoping for some petty revenge ideas to complement the other efforts.
Figure out which WiFi network is theirs, and then set up like 50 with the same name.
Pour your leftover chicken juice in any and all vents for their home. Heck, get a syringe and shoot it in their lock.
You can buy live spiders in bulk. Use your imagination with this one.