Two Americans – Brenda and Kenny – were bungee jumping one day when Brenda suddenly had an idea. She said to Kenny: "You know what, we could make a lot of money running our own bungee-jumping business in somewhere like Mexico." Kenny thought it was a great idea, so they pooled their money and bought everything they needed for a successful bungeejumping business: a tower, an elastic cord, insurance, etc. Then they travelled to Mexico and set up on a town square. As they constructed the tower, a c…