public static function unbindBehavior($name) {
		list($model, $class) = static::_classesForBehavior($name);
		static::_initializeBehaviors();

		if (!isset(static::$_behaviors[$model][$class])) {
			throw new RuntimeException("Behavior `{$class}` not bound to model `{$model}`.");
		}
		unset(static::$_behaviors[$model][$class]);
	}