Liz Spencer and Ray Pahl think we have eight types of friends. But where do servants fall on their puny little graph… huh? Or for that matter, enemies!?!
I am all for reducing what could be genuine relationships into impersonal data analysis, but otherwise this graph falls short of any real usefulness for my plans to enslave mankind.
http://www.thinkoutsidein.com/blog/2010/04/eight-types-of-friendship/