Whenever I’m on vacation, I continue to chart the markets. In the summer of 1990, while on vacation in the Bahamas, I was updating my charts on a picnic table beneath the palm trees. I noticed patterns that indicated buy signals in all the energy markets. These signals seemed particularly odd because it’s very unusual to get a buy signal in heating oil during the summer. However, I didn’t question the trade and simply phoned in the orders. Three days later, Iraq invaded Kuwait and oil prices exploded.