It does not get more personal than this. Some say six to one, Montgomery insisted on fifteen to one. For Winston, it was enough to simply call a friend who just opened a bottle of vermouth, or to stir the gin over ice and while glancing over on the vermouth bottle. It can be a pickled onion, an olive or with a twist. Or an Oliver Twist. It can be shaken or stirred. It can be dirty. It can be ugly, elegant, or flirty. But it's never anything but immensely cold, with dryness as its north star. The easiest way to spot a psycho is to dip your pinky in their dry martini - If it's lukewarm, do best by staying away. Simple yet disputed.