The human condition.Folks that hold it inside, then after 5 years come and vent their spleen and give you 5 years worth in 10 minutes.
Story time:
I live down a dead end road, with one neighbor that lives at the end and for 5 years I've had a burn pile at the end of my property, then burnt it once a year inviting the neighbors over for beer & brats. After 5 years of this he stops last year and tells me he's tired of looking at my trash (tree limbs from storms) and asks if he can stack his trash on my driveway. I look at him funny and kindly say no. I then ask if it's bothered him for the 5 years I've done it and he says yes.
Still scratch my head why it took him 5 years to tell me.