The little song and dance number at the end - that's me, my voice, howling out. It was a new experience for me. I've never sung before and I've certainly never sung on screen. I think I sung on stage when I was 13 and for some reason nobody's asked me to try it again since.
From reading over the notes for each session it was apparent that there had been improvement by more or less regular steps from almost complete terror at sight of the rabbit to a completely positive response with no signs of disturbance.