buy an $100 australian gold coin
then,
ask him to exchange the coin for paper money at a bank.
then,
put what the bank will give him in one hand and the gold ounce in the other hand
then,
ask him the question "which hand holds the true intrinsic value"
the,
ask him what he want.
If he wants what the bank gives him then buys shares for him. If he likes the coin then give him as many as you can.
GC
