My first real job was caddying, and it changed my life. It was the 1960s, and the people I was caddying for were always talking about the stock market. So, I took my caddying money and bought Northeast Airlines because it was the only company I had heard of that was selling for less than $5 a share. Little did I know, but the stock was so cheap because they were about to go broke. But I got lucky and they got acquired, so I tripled my money. And just like that, I was hooked.