function fail(actual, expected, message, operator, stackStartFunction) {
  var a = new Assertion(actual);
  a.params = {
    operator: operator,
    expected: expected,
    message: message,
    stackStartFunction: stackStartFunction || fail
  };

  a.fail();
}
Node.js standard [`assert.fail`](http://nodejs.org/api/assert.html#assert_assert_fail_actual_expected_message_operator).
@static
@memberOf should
@category assertion assert
@param {*} actual Actual object
@param {*} expected Expected object
@param {string} message Message for assertion
@param {string} operator Operator text