I've been experimenting with Sencha Touch's Drag and Drop functionality (http://dev.sencha.com/deploy/touch/examples/dragdrop/), and although I've searched both official documentations and online sources, it isn't clear how a dropped draggable element can be dynamically removed from the screen (and from the memory): listeners: { drop: function(droppable, draggable, e) { // how to remove 'draggable' that was just dropped? // this.remove(draggable, true); <-- doesn't work }}Does anyone have any ideas?