Or maybe.....

'Cause we will never really know, will we?

Captain Jack Sparrow(Captain Jack Harkness is a distant relation) is Sally Sparrow's great-something grandfather and he went on adventures with the Doctor until he had a run in with Weeping Angels(and lost his sanity). But then later it turned out that Jack's jar of dirt? That held an orphaned Santaron. The Doctor found out about it and went over and managed to get him out without anyone noticing-almost. The Chameleon circuit wasn't broken back then, and looked like a water wheel. Just when he was going to take off for the Santaron Galaxy with the orphaned one, Will and Jack jumped on, not allowing the TARDIS to be more than a few inches off the ground, if that. Then when it fell, the circuit got damadged, and only fully being out of order with he crashed into London the late 1900's a few days(hee hee hee) later when some Weeping Angels. Cause, see, Weeping Angles are really the first Sherlockians who died of the Feelz when Sherlock fell. They only send people back in time in hopes that they can save Sherlock, but it's a fixed point in time and so even the Doctor can't do anything about it when he got there. Consequently, Moriarty, Sherlock's frienamy, was friends with the Weeping Angels UNTIL he killed Sherlock and they pushed his body back in time which them absorbed some of the timey-wimey stuff because they sent him all the way back to the year 5 billion which in turn brought him back to life as a Time Lord. There he became the Time Lord(and the Doctor's worst enemy) the Master. But on the way there he sends reminds a young man to go to a ruined mansion that his great-great Aunt Nightingale wanted him to go to on this particular day and time. The Doctor's dark side, meanwhile, is coming through with Amy and Rory in the dream world. The birds that you hear when they fall asleep? The nightingales? That's Doctor's guilt. See, he could have saved Sally's friend Ms. Nightingale but got killed by a dying Weeping Angel and regenerated(probably into Hurt).
But see, it goes on. While regenerating into Hurt in the TARDIS he crashes down to earth, injuring a few people on accident. His sonic screwdriver got crushed in the crash and so couldn't heal anybody. The Doctor focused his main attention on a young boy, John Watson, and told him crazy stories about stars, and time travel and aliens to keep him conscience. He told him that he would take John and show him around once he got better, but he was called home to be babied over before they could. John's sister Harry got sour because he was getting all of the attention and-well, they've never been on good terms since.