The Trick or Treat "Shotail"

Trick or Treat (layered cocktail shot)
1/2 oz. (15ml) Luxardo Passione Nera black sambuca
1/3 oz. (10ml) Midori green melon liqueur
Pour the chilled ingredients carefully into a shot glass so that the green and black layers keep separate. First add the sambuca, and then the Midori.
Try pouring the Midori over the back of a teaspoon to follow the trick of professional bartenders.