- "If tyre damage is beyond plugging, do whatever it takes to drive the vehicle to level ground before jacking – even if this destroys the tyre and damages the wheel. Any alternative is better than the huge risks to persons and vehicle of jacking a vehicle on a slope with any kind of jack, including an exhaust jack on which a vehicle will easily move and roll,"
^^^^^^
Good advice...BUT a flat tire (often times already off the bead) can make it impossible for the vehicle to continue on (with three wheels). You'll be changing the tire RIGHT THERE or leaving the vehicle....period.
So...think about it ahead of time and have a plan. But most of all, DO NOT put yourself in a situation where the vehicle can shift. Consider where the weight bias is (on slopes).....or be prepared to experience an abject lesson.
Use your head, take your time, learn WHAT you need to do in each situation BEFORE you need to do it. Have the proper equipment.