Where abouts? My sister has been married to a Scot for ~15 years so have spent quite a bit of time up there and never heard a word of it. I would be considered English to them too (1/2 Welsh by grandparents but born and brought up in England) so I would have thought I might get a load of shit up there but never.
Not entirely sure how Blair can be blamed for what Scottish people think or say, you might have to explain that one.