Ok, I'm going against the general opinion here, because I absolutely loved this one. It's a story of growing up, learning that the world is more complicated that you want it to be, and that just because you want something or someone it isn't necessarily for you, and just because someone else truly cares about you doesn't mean they know what's best. Also, it's a story about non-threatening zombies and CIA pyjamas. Like Danooli, I didn't want it to end.
Sure, I don't know if I understood everything and I don't think I can explain the story very well, but emotionally, at least, I found it considerably less opaque than "Zombie contingency plans". I really need to pick up the collection this came from.
(Of course, "To the Lighthouse" is probably still my favourite novel ever, so I'm clearly not averse to "post-modernist mumbo-jumbo". Though I'd strongly argue that neither it nor this story set out to confuse anyone, though they probably don't see confusion as something to be particularly avoided, either)