I'm a smartass who likes to invent drinks.
Recipe #1:
Milk
Coffee liqueur
Chocolate syrup
Vodka
Actual cream
Start with the milk. Add choc. syrup to taste, and when it's almost perfect slowly whisk in both kinds of booze. Sample often, and make note of the rough amounts used to make it taste the way you like it best. Add a small dash of whipping cream for thickness if you're not worried about fat content. When I perfected my recipe from what began as a homemade Bailey's knockoff recipe, my best friend inadvertently named it by commenting "It's like being kicked in the head by a chocolate-covered mule...and liking it." So we call it Chocolate-Covered Mule.