code: function() {
          if (!this._callbacks) return;
          this.__callbacksFrozen = false;
          for (var event in this._callbacks) {
              if (this._callbacks[event]) {
                  // Remove the normal way, in case we've got a nested loop
                  this._unbindCallbacks(event);
                  // Also completely delete the registered callback from handlers
                  delete handlers[event][this[0]];
              }
          }
      }
docs: Completely all callbacks for every event, such as on object destruction