A steakhouse in New Jersey, but I never plan on buying it a shot at a time again, I'll just get a bottle, now that I've tried it.
(But holy shit, it was twenty-eight dollars, and it wasn't a huge pour either. It was plenty for a pre-dinner drink, and enough to let me know I wanted a bottle when I had an occasion to buy it, but god damn, I'm glad I wasn't paying.)
But if there was a restaurant that had <$10 pours of Lagavulin, I would have dinner there every week.