You have to respect a place that is a strict purveyor of one product and one product only. Especially when that product happens to be a relatively obscure liquor from the Oaxaca region of Mexico, known perhaps more for having a fat worm in the bottom of the bottle than anything else. But don’t worry, plates of oranges sprinkled with chilli are on hand as the perfect accompaniment, and for the less adventurous the only non-Mezcal-based drink available is Mexican beer. Hidden under a small sign at the bottom of a stairwell, it is a true den of iniquity. Gore comics sprawled over the walls provide a colorfully curious backdrop at Qui-qui-ri-qui (Spanish for cock-a-doodle-do in case you wondered) at what is London’s first and finest Mezcal bar.