He doesn't go back where he's been, or retrace his steps. He doesn't visit old friends unless he runs into them by accident. And he most certainly doesn't do funerals.

But for this man, old Brigadier Lethbridge-Stewart, maybe he can take a moment away from fleeing his own shadow to say farewell.

He stays well away from the mourners at the graveside, not wanting to interfere. Quite a few of his old selves have turned up here and they're all avoiding each other's eyes. It's not a day for small talk and joking around.

It's a rare day in the Doctor's life-a day when he goes back to something. A day when he remembers, a day when he retraces the steps he took with one human along the way.

He does a little salute towards the group of mourners in black, then turns towards the TARDIS and Amy and Rory and back to running away.