code: function(obj, name, callback) {
        var listeners = this._listeners;
        if (!listeners) return this;
        var deleteListener = !name && !callback;
        if (typeof name === 'object') callback = this;
        if (obj) (listeners = {})[obj._listenerId] = obj;
        for (var id in listeners) {
          listeners[id].off(name, callback, this);
          if (deleteListener) delete this._listeners[id];
        }
        return this;
      }
docs: Tell this object to stop listening to either specific events ... or to every object it's currently listening to.