I have a bad habit of annoying hiccups! Not by fault but by nature. I have always had this weird thing when I start hiccuping, I can't stop. A few years ago I was at a bar with some friends and I got the hiccup cure from the bartender (who was annoyed by my hiccuping):
Fill a shot glass with Roses Lime juice
Top with 5-8 drops of Angostura bitters.
Both non-alcoholic, tastes terrible, works like a charm. How do I know, just tried it again. I hate having hiccups! But the cure works.