In 2001, Dr. Who assassinated Queen Elizabeth II while she was making an appearance in Sheffield. The self-doubts of his accomplice Jason, coupled with his own essentially fictional nature, meant that the Queen survived. (PROSE: Head Games)
Behind the scenes Edit
The website whoisdoctorwho.co.uk had a list of sightings of the Doctor from which people had ostensibly been submitting to Clive, a conspiracy theorist character from Rose, who had pictures of the Doctor's ninth incarnation on the website, asking if anyone had seen him.
A submission from H.J. Hardeman claimed to have seen "someone very much like him about a year ago". He had tried swapping "Edwardean gear" [sic] at an Oxfam in Sheffield for a pair of jeans and trainers.