& @pay
 
  Syntax: @pay <object> = <message>
  Attribute: Pay
 
  Sets the message that is shown to the player who gives <object>
  enough money to satisfy its Cost attribute.
 
  This attribute is only meaningful for things, and will never be
  automatically triggered on other object types.
 
  Example: 
  @pay Coke machine = You slip some change into the slot.

  See also: give, @apay, @cost, @opay