While political uncertainty persists, so too does retail tumult: this week has seen Debenhams release a profit warning, with the admission that its previous statement about being on track to deliver profits in line with market expectations is "no longer valid", after sales fell sharply over Christmas. That certainly isn't going to fill toy companies with great confidence: I was party to a discussion on the journey home from Nuremberg which revolved around the dilemma of whether or not to continue supplying Debenhams, and the views even at that stage were decidedly mixed.