This code help you turn on/off behaviour. Place it in app_model.php
to have such methods in any model.

Model Class:

<?php 
class AppModel extends Model { 
    var $_behaviors = array();
 
            
    function excludeBehavior($behaviors=null) {
        if (!is_array($behaviors)) {
            $behaviors = array($behaviors);
        }
        foreach ($behaviors as $behavior) {
             if (isset($this->behaviors[$behavior])) {
                $className = $behavior . 'Behavior';
                if (!loadBehavior($behavior)) {
                    // Raise an error
                } else {
                    if (ClassRegistry::isKeySet($className)) {
                        if (PHP5) {
                            $this->_behaviors[$behavior] = ClassRegistry::getObject($className);
                        } else {
                            $this->_behaviors[$behavior] =& ClassRegistry::getObject($className);
                        }
                        unset($this->behaviors[$behavior]);
                    } else {
                        // not registered raise exception
                    }
                }
            }
        }
    }

    function includeBehavior($behaviors) {
        if (empty($behaviors)) $behaviors=array_keys($this->_behaviors);
        if (!is_array($behaviors)) {
            $behaviors = array($behaviors);
        }
        foreach ($behaviors as $behavior) {
            if (isset($this->behaviors[$behavior])) continue;
            if (isset($this->_behaviors[$behavior])) {
                $className = $behavior . 'Behavior';
                if (!loadBehavior($behavior)) {
                    // Raise an error
                } else {
                    if (ClassRegistry::isKeySet($className)) {
                        if (PHP5) {
                            $this->behaviors[$behavior] = ClassRegistry::getObject($className);
                        } else {
                            $this->behaviors[$behavior] =& ClassRegistry::getObject($className);
                        }
                        unset($this->_behaviors[$behavior]);
                    } else {
                        // not registered raise exception
                    }
                }
            }    
        }
    }
}
?>

You can use this methods in your models or controllers like this


    $this->Model->excludeBehavior(array('List', 'Translate'));
    $this->Model->save($data);
    $this->Model->includeBehavior(array('List', 'Translate'));