I've done it before.

It ain't the first time I've been through this window, is it, 'Tave ?" Ford's heart stopped beating.

There was a moment of laughing expostulation, the sound of retreating voices, the sudden darkening of the window, the billowy sweep of a skirt, the faint quick flash of a little ankle, and Cressy McKinstry swung herself into the room and dropped lightly on the floor.
She advanced eagerly up the moonlit passage between the two rows of benches.

Suddenly she stopped; the master rose at the same moment with outstretched warning hand to check the cry of terror he felt sure would rise to her lips.

But he did not know the lazy nerves of the girl before him.