A commonly used expression in Japanese is futsukayoi, or second day drunk which means having a hangover. Drinking is an important part of the cultural fabric of Japan. It is done to socialize with friends and family, to forge bonds between co-workers, to seal business deals and to determine the strengths and weaknesses of competitors. Some Japanese love to drink, others might enjoy the occasional drink, while others simply cannot tolerate a drop of alcohol. Yet, there comes a time when all need to partake in this traditional aspect of Japanese life. In fact, people who choose not to drink at all may be looked down upon with mild suspicion. Drinking might be be felt as a social obligation but is also one of the rare moments when these same social rules can be broken.