The sugar, that's what I use, too!
But recently I stopped a bad case of the hiccups with pure will. (And they didn't come back like can sometimes happen.) Then I told my friend about it, and she did it too. Then I did it again. I guess it gets easier once you know it's possible!
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"You gotta keep making decisions, even if they're wrong decisions, you know. If you don't make decisions, you're stuffed."
- Joe Simpson