My first experience with this Bavarian “liquid bread” was in 1973 and involved a late night trip to the Bahnhof with my buddy Reginald, six half-litre bottles of Salvator doppelbock, and a crippling hangover.
Bock is a strong lager which has its origins in the Hanseatic town of Einbeck, Germany. Bocks have a long history of being brewed and consumed by Roman Catholic monks in Germany. During the spring religious season of Lent, monks were required to fast. High-gravity Bock beers are higher in food energy and nutrients than lighter lagers, thus providing sustenance during this period.
Brian's Blog 
Great picture, that is the darkest beer I have ever seen.
That stuff looks dangerous! “crippling hangover” …my head hurts just thinking about it.
That was a long, long time ago. I’m done with the glory days . . .
Hey Dad..when you back in Gemrmany we will go to a bock beer “Anstich” in Bamberg. I think this will please you. But don’t make plans for the next day!!
The only plans I would need to make is what to tell Mom when we get home. Maybe we could stay at Maggi’s?