George, I recall the "lost" vehicle had three flat tires when it was found. When the tires went flat, well, I guess that is another question.

I've managed to get two flat tires driving over a single steel-bar scaffold footing that was dropped on the 10 Freeway in San Bernardino. It took me out and a few other cars before the Highway Patrol finally cleared the freeway.

Single flat tires in the back country have stopped me a number of times for tire changes. Not the most fun thing being way out no where. But with only one spare tire, I guess I was lucky. Two flats at the same time would have been the undoing of driving my vehicle and a possible test for survival, depending on the location.