If you make it to the end of the rather blurry shot of this label in Mellis's cheese shop you'll see why the cows are happy. Actually the implication that these Isle of Mull cows are uniquely happy made me smile, because feeding cows with the spent grain from whisky distilleries is commonplace in Scotland. My father was a grain merchant, and I grew up with phone calls from farmers wanting this grain, or 'draff', for their cows, or my father trying to sell excess loads of draff to farmers, or giving haulage firms directions to remote farms deep in the hills in the days before satnav.
That apart, a visit to Mellis's shops in Victoria Street, just off the Royal Mile, or in Morningside or Stockbridge, is a treat. The shops are more like caves - cold, dampish caverns stacked with great wheels and pillars of artisan-made cheese.
The happy cows also made me smile as I remembered my student vacation job as a tour guide at Glenfiddich distillery. It was a disappointment if someone didn't come up with a 'happy cows' remark when hearing about how the spent barley was disposed of. The fact that there was no alcohol in the barley was beside the point.