A man wants to invest, but is terribly confused about the stock market. He asks his friend, an investment banker, to advise him.
"Here is what you do, you take your savings and buy 10 chickens and a rooster. Those chickens will lay eggs and breed," his friend advises. "Not only will you have eggs to sell, but after some time you'll have a 100 chickens and expand your business."
"That is great. I shall do that."
"However, there is a risk."
"There is?"
"Yes, if there is a flood, the chickens will drown and you will lose all of your investment."
"Oh, no! That is horrible. What am I going to do if that happens?"
"You should have bought ducks."