I don't think of myself as very needy in regards to carbonated beverages. I have my share of pop throughout the day but I drink just as much water as anything else.
But today I am home with the kids while my wife is at work. In her car are the two car seats, so I feel essentially under house arrest. We are out of Cokes. We always have water, but right now I want a Coke. How badly? Well, if the kids and I go for a walk and a neighbor happens to have a canned Coke sitting in an open window sill? I'm taking it.
(OK, I'd leave a dollar in the window, but still. I would not be asking if I could buy it. I would be taking it and drinking it right there. I might be addicted.)