Consider Ricky Ponting. Picture him in your mind, this man who looks like a Victorian urchin, or as my sister put it, as if he spent his childhood being forced up chimneys.
There's really only one possible explanation: Ricky Ponting is a Victorian chimney-sweep, who has travelled in time and space and been dropped off back on earth with the Tardis's usual accuracy.
Is Ricky Ponting one of the Doctor's ex-companions?
That would be an ecumenical matter.