I have previously had issues with the neighbors dog barking a lot. Each time it was let out it yapped and yapped and I could also hear it yapping indoors too. If they went out, it was non-stop.
Eventually after the neighbours had gone on a night shift and the dog had been barking non-stop from when I got home in an evening and until around midnight when one of them got home, I put a nice note through their door and since then, for the past year i'd say, all has been well. They have shut the dog up as soon as it barked and the dog seemed to learn not to bark as much.
However, I have noticed this morning and this evening that the dog has been left to bark at prolonged periods again and my anxiety has shot up. What can I do?