3......Situation You remove the positive battery cable when there is nothing wrong with your extremely high amperage alternator. You accidentally ground your metal wristwatch band to the radiator support, because you didn't notice the positive cable end was touching the watch band, instantly frying your watch band to your arm. 30 minutes later in the ER, you are having your watch surgically removed from your arm because it is cooked on.
Seen it happen, first hand. Once with a ring and once with a watch. It was the SAME GUY within a month of the first accident.