Recently I returned to CA from being a good 4.5 months in South America.  I had an intense case of reverse culture shock as soon as I stepped on that plane.

My parents managed to get me on Business Class with their miles and let me tell you, after getting used to busing it around everything, it felt like I stepped into a 10 star luxury resort (my new star system of course).  Of course I had no idea what I was getting myself into and packed a backpack full of snacks (fruit, a chicken salad, nuts, cliff bars, etc, etc) as if I were embarking in a 20 hour bus ride with nothing to eat but the occassional vendors that would wander onto the bus.   This was obviously unnecessary since I arrived at the airport with access to the VIP lounge (that offered unlimited appetizers and refreshments - obviously I pounded a few fantas...obviously.) and then basically anything I wanted once I passed that magnificent curtain that beholds the promise land.  I actually remember the exact moment I realized I "wasn't in Kansas anymore" and I was foolishly over prepared.  It was when the flight attendant (I had 4 waiting on me!) asked me if I wanted "a chicken sandwich or squash soup for my snack" (snack!?) and then handed me a giant card to fill out my breakfast options (options!?) that notably consisted of french press coffee, fresh fruit, yogurt, whole wheat bread (sweet jesus!), and how I wanted my eggs (NOT "if" but "how!!").  This was all, of course, after she had just brought my introductory champagne - I could definitely get used to this.