The neighbor's dog. It kept barking last night...
Funny how it didn't disturb the owner.
Well, I have to admit, part of it might be them having gotten used to the barking. It's like living across a two lane road from a major railroad line....the noise at night eventually puts you to sleep (hence the line "lullaby of a midnight train" from the Little Big Town song "Boondocks")...maybe it's the same here.
There are several dogs in my neighborhood that bark some ungodly hours of the night, but it's better than the stereo bombers who drive down my street with their subwoofers cranked up to maximum pain.