History: Back when car batteries were used to jump-start hearts

Glorified grease monkeys looked at the human heart like a car engine

It’s 1965, and you’ve gone into cardiac arrest while doing something hippy-esque in a field somewhere: the good news is the portable defibrillator has just been invented; the bad news is the paramedic dragging it over to you has just had a heart attack themselves because it weighs a whopping 70kg.