I don't agree with everything in this, but it's funny.

From http://www.nytimes.com/2006/08/23/opinion/23kreider.html:

The solar system is a mess.

The situation this seems most similar to is the inextricably tangled social nightmare that is inviting people to your wedding. You truly want to invite your distant and eccentric but dear old friend Pluto, but this necessarily means inviting his horrible girlfriend, too, plus then maybe you’re obliged to invite all the other people you were both friends with in college, friends he’s still in contact with who will be offended if he’s invited and they’re not but who, frankly, are now boring people with whom you no longer have anything in common.

Some would suggest we just have to be harsh about this and not invite any of them, Pluto included. But these people are forgetting that we already sent Pluto an invitation, 76 years ago. Pluto has rented a tuxedo.

( Full article here, because the NYTimes requires registration, and because it expires its articles. )