I just got the following email from KinderFarms, a "natural" kid's medicine company that objects to all the "unnatural" things found in children's OTC medications. Damn, they picked the wrong person to spam with this.
Artificial vs. natural
“Hiccups are one of the most common bodily experiences that humans (and rats, squirrels, rabbits, cats, dogs, and horses) have; even fetuses get them.