However, it's not just the Tenth Doctor that dishes out the dodgy punishments. Whereas the Eleventh Doctor only threatened to kill his enemy in A Town Called Mercy, in the preceding - otherwise light-hearted - adventure Dinosaurs on a Spaceship, he actually went through with it and executed the episode's villain. With missiles heading to the spaceship filled with himself, his friends and a cargo of dinosaurs, the Doctor tricks the missiles into targeting the spacecraft of David Bradley's despicable space pirate Solomon - with Solomon still inside. The Doctor ignores the man's cries for mercy and leaves him to be destroyed. It's a shocking moment for an episode whose mission statement seemed to be 'family fun', to then end with the Doctor committing cold-blooded murder. It's the total control over who lives and who dies that the Doctor exhibits in this moment that make it such a dark one. Surely Number Twelve, having been gifted with saving his own people from the Time War in his previous incarnation, wouldn't chose to take a life like this again? We'll have to wait and see.