Q1: When one removes a car battery, why does one start with the minus wire? Is it because if we remove the plus wire first it may touch the body of the car and close the circuit, causing a short-circuit that leads to ... what?
Q2: Why doesn't one get electrocuted when touching the minus wire while removing the battery? I'd image that when touching it we'd be part of the circuit and the current should flow through us. What am I missing here?