Jace and the Fairie Plum

In TMI: City of Bones Alec references the time when Jace ate a fairie plum, this is it....
"Don't order any of the faerie food," said Jace, looking at her over the top of his menu. "It tends to make humans a little crazy. One minute you're munching a faerie plum, the next minute you're running naked down Madison Avenue with antlers on your head. Not," he added hastily, "that this has ever happened to me." TMI