In the Doctor Who episode Deep Breath, the Doctor and the Half-Face Man are standing in a doorway hundreds of feet above London and the following exchange takes place:
HALF-FACE MAN: Self-destruction is against my basic programme.
DOCTOR: And murder is against mine.
DOCTOR: You realise, of course, one of us is lying about our basic programming.
HALF-FACE MAN: Yes.
DOCTOR: And I think we both know who that is.
The next we see, the Half-Face Man is impaled on the top of Big Ben. It's never stated explicitly whether he jumped out or the Doctor pushed him, but do we know what happened? I'd say the events towards the end of Death in Heaven (spoilers!) suggest he jumped out, but is there any more solid evidence or word-of-Moffat proof?