Why bother?

I spotted this small can of beer in the Precce Premium Food Market located in the basement of Tokyo Midtown in Roppongi. I don't drink often, but a normal 355-ml or 12oz can would be refreshing. A can slightly over 1/3rd this size is barely a mouthful and would probably be more frustrating that thirst quenching.

Anyway, I am not sure why anyone would purchase a 135-ml can of beer. Perhaps they have a small bladder? They use beer for mouthwash? The store was sold out of larger cans? They get drunk real easily?

None of these excuses, seem really very good. I just wonder what the pitch to the beer company must have been.

Nikon D600 with Nikon 85mm f/1.4 AI-S @ f2.0, ISO 400, 1/320 sec.