Thanks for your two responses. You two may live (except you Dave, I know that was you outside my window last night).
I'm afraid to say I went against the tide of popular opinion. Somewhere at the back of my head a little voice told me to stay the course. The reason being, she might realise that my sole reason to cross the road would be to get away from her crazy arythmical jerking, upsetting her endlessly, and impinging upon her fundamental rights to be a crazy dancing lady.
That and i thought she had a knife. No-one wants to be stalked by a crazy dancing lady with a knife.