You know who they are -- the person you kinda sorta know, acquaintance of an acquaintance type of thing -- and they keep inviting you to events in other countries, adding you to groups you couldn't care any less about, and spamming your wall with their virus links, and you're just dying to know how to unfriend them.
Well, rest easy. It's not rude. It's not anti-social. It's not you -- it's them. They're unfriendable. And it's Facebook, with their "invite all", "add to group", and other easy-to-abuse buttons. You're not breaking any covenants that ought not be broken. You're simply restoring your Facebook sanity. And we're going to help you... after the break.