Marionette bubble event from itemview to parent layoutview?

I have a layout view with a region, in that region I have a item view that triggers an event but it doesn't seem to be bubbled up to the layout view. Am I doing something wrong or is this designed behavior? I assume the itemview prefix is not added as the parent view is not a collection view? Either way the event is never bubbled to the layout view.

layoutView = Marionette.Layout.extend({
        template: "#layout-template",
        regions: {
            titleRegion: "#job-title-region"
        },
        triggers: {
            "save:clicked" : "onSaveClicked"
        },
        onSaveClicked: function (args) {
            alert('Clicked');
        }
    });

childview = Marionette.ItemView.extend({
        template: "#child-template",
        triggers: {
            "click .js-save": "save:clicked"
        }
    });

UPDATE:

See this fiddle http://jsfiddle.net/7ATMz/11/ I managed to get the layout view to listen to the child event but I have to wire it up outside of the layout view itself and break encapsulation. Can I do this in the layout view in anyway?

Thanks,

Jon