I live in an apartment. There is at least one (and possibly two) dog who seems to be left home alone all day, and there is a lot of barking. That lasts for hours. I am sympathetic to some amount of barking, but also, I am home most of the day, and it is very distracting and distressing to hear a dog barking for hours multiple days a week. I don’t want to get the owners in trouble, but I also would like to solve this problem. Would it be weird to leave a note that says something to the effect of “Hey, FYI, your dog barks a lot all day. I’d be happy to spend some time with it during the day to give it a little attention!”?