On this page a decade ago, I described a memorable pub crawl sampling 30 brands of single malt whisky in and around London’s Pall Mall in one evening. The residual hangover lifted this year, only to be replaced with one spurred by beers downed in Amsterdam. Belonging to the legendary Gorkha regiment, my beer-drinking prowess is widely recognised and was once measured in the Solan brewery with streams of Lion Lager. I recall in Katanga, Congo, the salary of the local gendarmerie was paid weekly in bottles of Simba beer. On a counter-insurgency mission with the United Nations, one could easily sniff out the enemy.