You want to dig a ditch? Between England and Scotland? I think a hedge would look better 
It seems to me we in Scotland need protection from the political idiocy emanating from south of our border with England.
Not content with having a referendum purely for party political reasons and then it not turning out as Cameron et al expected it would, we are now supposed to feel comfortable that one of the two candidates for PM is a relatively inexperienced lightweight: not only is it inexplicable that people in Toryland take her seriously (along with her fellow Tories who are responsible for the current situation), it now seems that the current games of musical chairs are the main issue and not the impending madness of Brexit.
I'm normally a mild-mannered old soul (most of the time anyway) but this whole fiasco makes my blood boil: so no ditch or hedge, Spud, but perhaps we do need the political equivalent of a very high wall so as to leave you guys to shoot yourselves in whatever feet you still have left without you dragging us down with you - you guys voted for the fucking Tories: not us!