my upstairs neighbors host a toddler one weekend per month. it's usually the 3rd one. so i expect the kid to be there this weekend from Friday evening through Sunday afternoon. it always sounds like the kid is up there playing war games. lots of banging on the floor and running and occasional yelling. i never complain b/c the loud noises are infrequent and the noise generally ends around 8 or 9pm when i assume the kid is put to bed. and it's only one weekend per month so it's not so bad, really.
they have a party maybe once per year - i assume it's a birthday. and they had a party for the Pacquiao/Mayweather fight too. lol those were no big deal but i'd have appreciated a heads-up/warning about them b/c both parties ran late - to about 1 or 2 am. i could've complained b/c they were loud during 'quiet hours' but i chilled.