Boats,
You are correct and I did hear the guy's explanation. In my experience, quite a few ostensibly dead batteries on older cars can be made to start the vehicle simply by doing a thorough cleaning of the terminal connections. Alternatively, I would scrounge several tired batteries and try to connect them in parallel for the initial start, then disconnect the extras. I just can't imagine finding a hospital that would be secured and in that good shape, ready for me alone to break in to. And why not just take the generator starting batteries and use them to jump a vehicle?
I need to get better at the "open mind" state necessary to enjoy some of these shows.
DancesWithKnives