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