Parentless Visible View (or why the view I've removed keeps popping back up)

I have a button which removes all children from a view. This button appears to work as expected and when clicked the all children in the view are removed and disappear from the screen.

bv.clearBoard = function(){
        while (bv.g.children !== null){
            bv.g.remove(bv.g.children[0]);
        };
    };

However, the next time I touch anywhere in the view I just cleared the children reappear on screen, but parentless. All of the views that had been removed now return null for their 'parent' property. I am of course very confused by this... Any help on how to actually get rid of these children?