Without a swift-kick no angel will turn around long enough to vanish as a demon, and without a swift-kick no demon will turn around long enough to vanish as an angel.
With a swift-kick there is no angel that will not turn around long enough to vanish as a demon.

All this vanishing is into the Universe's Dark Matter and Black Holes that hide all the demons that angels need to act angelic and all the angels that demons need to act demonic.

Eh?

I think genep needs a swift kick in the ass.