Late one night I stopped at one of those 24-hour gas station   
mini-marts to get myself a fresh-brewed cup of coffee. When   
I picked up the pot, I could not help noticing that the brew   
was as black as asphalt and just about as thick.   

"How old is the coffee you have here?" I asked the woman who   
was standing behind the store counter.   

She shrugged. "I don't know. I've only been working here two   
weeks."