Bahlool’s Clever Trick Against a Fraudster – the consequences of greed

One day, Bahlool was playing with a gold coin in his hand. A fraudster approached him and said, “If you give me that coin, I will give you ten coins of the same color in return!”
When Bahlool saw the man’s coins, he realized they were made of copper. Bahlool then said, “I’ll give you my coin, but only if you bray like a donkey three times.”
The fraudster agreed and brayed three times.
Bahlool turned to him and said, “Even with your donkey-like behavior, you understood my coin is gold. Do you really expect me to not understand that your coins are copper?”