Cans of lager (550 ml) are like some sort of canister that fits into a machine or weapon. Replenishment for a photocopier for example, or even a handy unit of fuel that a gas burner screws into.
They stack neatly in the fridge and keep for years, they can be consumed easily on all methods of transport and at any occasion.
For us, they are enjoyment canisters – grabable, easily held modules of fun. Portable, practical, reliable and very tasty (Think Soma from brave new world). After a night on the piss there’s nothing like a cold can of Carling at around midday.
The humble can of lager always comes up trumps – good clean cheap fun with no potential for a dirty glass, foul tasting pipes or pig ignorant bar staff.