To make a car analogy: if someone is so incapable of using a car that they can't shift gears without fucking it up, they don't need a car mechanic, they need to be kept the hell away from cars period.
No, what they need is an automatic transmissions and to be kept away from manual transmissions. Unless it's a rental, then they need the rental insurance; and possibly a video camera mounted somewhere for shits and giggles.
In the realm of scientific observation, luck is granted only to those who are prepared. - Louis Pasteur