I believe Scots Law dictates that if a customer is unhappy with goods they have bought, up to 7 years after the initial purchase, they're entitled to be sent a bottle of this stuff by the retailer:

http://www.thedalmore.com/shop/product.aspx?ShopItemID=15

That said my grasp of some of the finer points of Consumer Protection within Scots Law is a bit hazy...

EDIT: By the way, I am strangely on topic here for once, because the link is to something  old that has recently been released as new... get it? I just did ;-)