I LOVE PATRON, no salt, no lemon, PERIOD. But I sure as hell don't love it enough to let someone pour citric acid in the form of an oil in my eye for a free shot.
Sambuca: Sam*Bew* ka is an Italian aniseed-flavored (black licorice), usually colorless liqueur.
In Italy it is common to serve neat Sambuca with some floating coffee beans dropped on it: it is called Sambuca con mosca (literally, "Sambuca with flies"). The beans are there as an ornament, but they can be "roasted" by lighting the fumes of the alcohol for 30 or so seconds..