Now theres something I never got. Why has the Doctor taken to dropping off his assistants? In all other series they have stayed with him throughout, only returning home occasionally. Think of 'The Army of Ghosts' with Rose Tylor, when her mother was so happy to see her. Think of series 5, just before Rory. Amy had all her adventures on the night before her wedding. So why has The Doctor suddenly taken to having them Part Time? Confused.
Oh well, Angels...