RANDOM ACTS OF KINDNESS. Chicago's Metra commuter railroad charges passengers a $2 surcharge for purchasing tickets on the train, if the passenger boards at a station with an open ticket office. (A lot of occasional passengers boarding at Chicago get caught at this. The stories they give about the ticket windows being closed are sometimes amusing.) Today, a passenger on a train (I will not disclose what train or what destination) offered a cash fare on a train leaving Chicago. The collector determined that the passenger would pay less for the $5 weekend pass than for the one-way cash fare, and sold the passenger the weekend pass with no surcharge.