Our neighbours are a relatively elderly couple and since they moved in have had a bee in their bonnet over leaves that blow onto their driveway. The gate to our driveway is opposite to their open driveway, separated by a narrow road. Our next door neighbour has a massive old tree in their garden that produces a lot of leaves, most of which fall into our driveway. We don’t really bother collecting the leaves, as it is an endless task at this time of the year, but the elderly couple is constantly on at us because the leaves blow across the road into their driveway and the odd one gets in their front door. Now we have told them we don’t produce the leaves, and they don’t bother us, so if they are bothered by the leaves either pick them up or take it up with our neighbour who owns the tree. But now they have even started collecting them in black bags and, under the cover of darkness, leaving them in front of our driveway gate, or throwing them over our fence. I’m tempted next time they do this to open the bag and dump it over their driveway again. AIBU by not picking up the leaves in our garden?