Q. We have a maid that comes to help doing house work. She carries a necklace with a crucifix, can she enter like that to clean the Suka?
A. I had personally experienced a far more testing episode while I was the Chief Ashkenazi Rabbi of Mexico. By Government decision and to help coordinate essential needed changes to the constitution, the Cardinal of Mexico and head of the Catholic Church in that country, would work together with the heads of other religions to create the modification in the law of the land, that would equally benefit even the small religious groups.
The Cardinal would visit me as a courtesy once a year. He preferred to join us with his top secretaries on Sukos. Yet he was courteous and polite enough to cover his crucifix before entering our house, and so did the others.
I have often told that story to our helpers and they well understood the meaning of it. You may use it also.
Horav Shlomo Miller's Shlit'a opinion is similar.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a