I flew an Angel Flight a few years back, with a burned child and
mother. The child (probably around 13) had been BADLY BADLY burned.
No nose, no ears, no fingers except for parts of both thumbs, no legs.
Real mess.

I let him sit right seat and we departed for Shriners. Soon he was ALL
questions? What's that for? What does this do? Well, you said the
rudders turned the plane, so why do you need that steering wheel thing?
After a bit I set the autopilot on heading, showed him the altimeter
and said "keep it there." He couldn't grip the yoke, but he could
capture it between his wrists. Frankly, I think he did a better job of
holding altitude than I do!

Strange thing... By the end of the flight, he no longer was this
horribly burned child, but just another kid totally fascinated with a
new discovery.

A flight I won't forget...