The Chicken Ticker
Years ago, my roommate and I were sitting at a bar. At one point, I convinced him that I had a chicken ticker running at all times on my computer. He then wanted to know what a chicken ticker was. So I told him.
A chicken ticker is exactly the same thing as a stock market ticker, only it constantly informs you of the current price of chicken in your area. It crowed when the market opened, and all day there was a quiet, constant buck, buck, bucking in the background as the prices crept by.
Even I knew I had drank too much at that point.