Great find, Kate - now I know why those slit to waist Chinese dreses are so useful!!
My all time favourite "ladies room" fight is the Players Club one.
Actually it is a dressing room but the heroine has an effective way of clearing it then an really harsh fight takes place.
Listen out for the "no balls there " comment at 1:56 - priceless
https://www.youtube.com/watch?v=9djhWfCErlk