Aye, it is. We even yell PASS THE NEEPS! at the person sitting right next to us, while we shove food into our faces. Dinna fash yerself over not knowing? I'm certain a lot of people here don't know where they're from precisely, unless they have an accent thick enough to slather on toast, and then it's painfully obvious.
Its not all of the time! If it was, I'd never go out for a few wee drams! It would be too bloody frustrating!
Sign up? Dotted line. I doubt there's mass retinal scan signature technology just yet.