" Rule number one: wear loose clothing.

No Problem.

Rule number two: no alcohol for the next three days.

Slight problem. I'll miss my evening glass of wine but figure I can go for three days without and compensate later.

And the last rule: absolutely no coffee or tea or caffeine of any kind.

Big problem. This rule hits me like a sucker punch and sure would have knocked me to the floor had I not been sitting there already. I'm eying the exits, plotting my escape. I knew enlightenment came at a price, but i had no idea the price was this steep. A sense of real panic sets in. How am I going to survive for the next seventy-two hours without a single cup of coffee? "

― Eric Weiner , The Geography of Bliss: One Grump's Search for the Happiest Places in the World