This is obviously lighthearted.
It's bin day today in our house. Our general waste is being collected. All bathroom bins have been emptied (only gets done once a week).
DH says the kitchen bin should be emptied and a new bag put in even though it's less than a 1/4 full just because it's bin day. It usually gets changed every 1-2 days.
I say it's only 1/4 full and no need to change it earlier and waste the liner just to send it away with the general waste collection.
Our general waste wheelie bin is never ever full. Usually less than half.
Who is BU?
YABU = all the bins should be emptied regardless of how full they are on bin day
YANBU = emptying a bin that's 1/4 full is wasteful of the liner etc and unnecessary.
What does your household do?
I can't actually see the voting as I'm on the mobile app but I'm sure someone will be kind enough to tell me the results in a question in a while!