Dilbert is meeting with a salesman. Dilbert asks, "Do you have any customer references I could call?" The salesman hands him a piece of paper and says, "Right here." Dilbert calls the number, "Beep, beep, boop, beep." The salesman's cell phone rings. The salesman's cell phone continues to ring. Dilbert says, "No answer." The salesman replies, "Try again when I'm in the parking lot."