The TivSampleExceptionsCheckingAccount class methods define two exceptions that are represented as class variables. One of the exceptions, TivExCheckingAccountOverdrawn, is defined as
anExceptionalEvent := TivExceptionalEventRoot root newChild. anExceptionalEvent description: 'Checking Account Overdrawn'. anExceptionalEvent resumable: false. anExceptionalEvent defaultHandler: [: sig | System errorMessage sig description. sig exitWith: 'done'] self TivExCheckingAccountOverdrawn: anExceptionalEvent.