• Suppose you are at a restaurant and order your food, but no drink. However, you ask for a cup for water. When you go to the soda machine to get [...]

  Switching water and soda

  February 20, 2011
• You buy a computer online, selecting an option to pay by mailing a check.  However, you forget to send the check.  When the computer arrives, [...]

  The internet bargain

  January 4, 2011