usually on sunday, unless i need her (eg. super big family gathering, going to business trip)
on day one i told her that i would try to arrange sunday for her holiday. i told her that i wanted her to have more friends, go to church, etc, and i don't believe she would only learn bad behaviours on sundays. i just told her all i think.
so far whenever i ask her to work on sunday, she does not blackface to me.