He couldn't feel what he was doing, but somehow he managed to unlatch it.
When Jason lifted his arm to unlatch the door it was heavy as two arms.
And lo, here is a woman stooping to unlatch the gate—it is she!
I unlatch the little door in front of me and crawl through it, and shut it behind me.
In vain I argued, that a ghost would have no need to unlatch the gate.