Just keep your sloe gin, andall other spirits, away from the refridgerator and the ice.
All spirits are meant to be drunk at slightly less than body heat, which is why a brandy glass is tulip-shaped. Indeed, there are particular shapes of glass for red wine and other shapes for white wine, each designed to augment the nose of the liquid.
The individuals who add ice to drinks demonstrate their total lack of class.
The only thing to add to Scotch is Highland water or (preferably) more whisky.
Colyn.