Every few years a hiccuping hotel guest appeals to me.
Hiccups rarely lasts more than a few hours, so a victim gives credit to his last effort and immediately rushes to his computer to proclaim its benefit. Literally hundreds of treatments exist: proof that all are worthless. Google “hiccups cure” to confirm that you must never look for health advice on the internet.
Long ago when an old doctor described a good treatment, I was skeptical. Even today, hotel visits for hiccups make me nervous, so I give a money-back guarantee. Once in the room, I take a tongue depressor and rub the soft palate at the back of the hiccuper’s throat. Sometimes he or she gags, sometimes not, but so far everyone has been happy to pay my fee.