I've tried that as well. Not in a single super-sized 7-11 mug, but a case of Mt. Dew that had sat in a friends car all morning. I got sick, but it didn't help me kick the soda habit. My ex keeps telling me how hard it is to kick a drug habit. I tell I know, I've been trying to get off the caffeine for years. She just laughs and tells me I don't know what I'm talking about.