Experienced same with an iPhone 5s and a three-prong Belkin charger in a Puerto Rico rental. Scared the hell out of me, too. Brushing the metallic back I'd fee

Experienced same with an iPhone 5s and a three-prong Belkin charger in a Puerto Rico rental. Scared the hell out of me, too. Brushing the metallic back I'd feel sticking. I think I licked it too, and it felt sour.