Hopefully whatever they do won't screw up the Open Championship.
I think a moat would be too expensive so maybe the great wall of Scotland would be the solution to keep those hords of Brits at bay, it worked for the Chinese.
They should be able to take a good look at the incredible job that we do here in the states with the border walls, moats, fences, etc. that keep our southern border secure, just do the opposite of what our President thinks will work and you will be fine.
If Scotland does leave the group, can they at least appoint William Wallace as King for a day? I know he's been dead for hundreds of years but find all the parts of him that they scattered to the four corners of Scotland, sew them back together and dress him up for a few pictures, he deserves at least that much...........maybe Mel Gibson can just sit in for him.