One Really CAN Learn Something New Every Day

Boilermaker (beer cocktail):

In another variant (popular in and around Hannover, Germany, there called “Lüttje Lage”), the shot glass is held rim-to-rim to the far side of the beer glass as seen from the drinker, and then both are poured into the mouth simultaneously. The inability of “beginners” and people who are already drunk to do this without pouring most of the liquid over their faces is good fun for everybody else to watch.