Fill a mixing glass 1/2 with ice, pour the vodka, triple sec, lime, food coloring into the mixing glass and stir.
Seperately in a chilled cocktail glass, squeeze a lemon, discard twist and ignite, then smother the flames with a damp clean rag. Stir contents of the mixing glass into this cocktail glass, and garnish with a (clean) spent rifle casing (optional).
Squeeze 1 lemon and 1 orange twist on top of drink, toast with a friend, ignite, smother with damp rag and enjoy.