This is a hilarious thread to read.

The Big Gulp issue could apply to so many situations in our world. Too much of floury foods? Too little exercise? Too much alcohol?
Is a gas guzzler a Big Gulp as well? Is frequent flying a Big Gulp impacting our supply of fossil fuel big time? Having a car at all requiring huge infrastructure vs transit?
Where does one draw the line on freedom of choice and its impact on all of society and its costs? That is the question not focusing on the few (usually poorer financially and less educated) segments of our world who may be drinking too much soda and becoming obese.