Robert Reed stories are typically among my favorite from any issue of The Magazine of Fantasy and Science Fiction. The October / November issue's story, "Mermaid" while not my absolute favorite, is still high on my list.
"Mermaid" is subtler than a other Reed stories I've read. The story unfolds as a meth addict and a young woman come to his house seeking help when their car breaks down. The man shoos them away, saying they are scary but really it's the woman who has him freaked.
The main character later explains, "'Soon that creature is going to require endless devotion and all of a sober man's conviction and resources, and I don't think you can manage that trick for five minutes.'" This sentence brought the story into focus for me, making me realize that a more obvious title would have been "Siren" instead of "Mermaid."