If there is one thing that Harry and Meghan excel at, it is snatching defeat from the jaws of victory. Their much-hyped trip to Nigeria – a royal visit in all but name – had, from their perspective, gone exceptionally well. Not only did Harry manage to deliver a well-received speech about mental health to a group of students, but the pair were besieged by admirers and well-wishers everywhere they went, all desperate for a selfie, a handshake or a hug.