Drag item out of a sortable

Drag item out of a sortable

I have two lists: a draggable and a droppable/sortable. When items are dragged from the draggable the helper is set to clone, so the original element remains in the draggable. Items get dropped into the sortable where they can be arranged.

I want to set it up so that users can remove items from the sortable simply by dragging them out of the sortable list. I don't care where they drag it, and I don't want to set up something like a recycle bin, I just want to detect if they try to drop the sortable item anywhere outside the sortable list. Suggestions?