Friend or Foe?

Guest list dramas. Every one who has been involved in planning a wedding has them. The hardest bit, they all say. I suspect that it is at this point that some people throw up their hands and decide to elope. I am wondering whether a redefining of the 'friend' criteria may help matters a little. Instead of considering each person in light of how long I've know them for or how good a friend they have been in tough times, how about;

Can they improvise a dance piece to George Michael?
Have they ever sailed a catamaran?
Do they like anchovies?
Do they own an item of clothing made from terry toweling?
Which member of parliament would they most likely take to bed?

I may just include these questions on the wedding invites and see what responses come back before I finalise my guest list....