An exercise in writing at three thirty in the morning ... Part two

When I was in Burger King this afternoon a man walked in carrying an empty gas can.
He ordered a double cheeseburger and a carton of chocolate milk. He set the gas can down and nudged it along with his foot as he moved through the line. While he waited for his order he shared a joke with the teenage boy behind the counter and they both laughed. When his order was ready he picked up his gas can with one hand and his tray with the other and walked to a booth by the far exit. I didn't see him after that because I was facing in the opposite direction and I didn't want my curiosity to appear obvious. About five minutes later I got up to go get a refill on my coke and shot a glance his way, but he was already gone, along with his gas can, and his fumes.