As I understand the article, shoo them away was effectively what happened and always has done.
Maybe you aren't old enough to remember the Cuban Crisis of 1962, but I am and also I was living in London at the time, and it was London that Moscow had in its sights in the event of the US continuing to try to blockade the Russian ships and so stop them reaching Cuba with their cargo of nuclear missiles. We held our collective breath for two weeks as Messrs Kennedy and Kruschev eyeballed each other, neither side being prepared to back down, until Kennedy finally did by allegedly entering into secret negotiations with Kruschev. In fact this was the closest the Cold War came to escalating into a full scale nuclear war. So having lived for two weeks knowing that a nuclear missile was aimed in your direction, I know exactly what fear of instant annihilation is like, so perhaps you can understand why very minor incidents like this don't exactly have me shaking in my shoes.
Basically what I'm saying though is that I do not see Russia as being a threat to this country because Putin is too busy acting the bully boy with their neighbours to be over-interested in us. What is a alarmingly real threat to us is that posed by Islamic terrorists, many of whom may already be living among us anywhere in the UK.
In this connection you might find this article of interest since it relates to what the Scottish police are and have been doing for some years, perhaps in response to the failed attack at Glasgow Airport in 2007, in an attempt to prevent violent extremism and radicalisation - http://news.scotland.gov.uk/News/Police-and-Muslim-community-working-together-e28.aspx
No, 1962 way, way before my time. I don't think we are in any danger from Russia BUT my point is that in an independent Scotland how would we shoo them away?