200952 - Call 3

A question about jumping batteries.Her battery was dead. Neighbor is a refugee from Kosovo--he removed the battery from his truck, placed it directly on hers and got it to charge without jumper cables. Are jumper cables just a marketing ploy, or is this dangerous? This is dangerous--you could drop the battery, spill acid, or get a spark that could cause it to blow up. His method was out of necessity, and not the preferred way to do this.