Read this strip at gocomics.com.
There is spite, and there is this. There's something almost affectionate about holding an entire party specifically to focus on something a particular, pointedly-uninvited person likes, although it's rather a lot of trouble to go through. I can't help but think that the result would be rather a slapdash affair. Why would you do otherwise, when the "guest of honor" won't even be there?
