Rats, it's raining out. Wait, that's great because now we can stay in and drink the appropriately moniker'd beverage the Dark 'n Stormy.
Get out your tools: dark rum, ginger beer (not ginger ale) and a lime. Optional: brown sugar.
Ice first. Then a liberal shot of rum. Then ginger beer to 3/4.
Squeeze that lime to death then give it a stir. Or drop in your brown sugar first if you're a pussy. Take a sip. If it bites you, bite it back and replace your sip with more rum. Congratulations. Now you're a pirate.
Savor it. Look into your glass and think about the North Star and the snap of your sails and your bonnie lass.