English Art/Literary Linguistics A Scotticism?

The regimental sergeant- major (Scots Dragoon Guards) to the bomb disposal operator
who is about to leave Iraq:
– Sa! – he barked – I’d heard you had had enough of us and were getting the f*** out of here!
[…]
– I still cannot believe it; I keep trying to understand how we could have stopped it . . .
The RSM stopped me in my tracks. – Sa. Don’t go down that route; don’t let your mind play those games.