The maid got angry because I took off her catholic virgin image off the wall - What should I do?

I live in an apartment complex. We have a maid who comes and does the cleaning. An hour ago, I noticed something strange. Someone had stuck a picture of a virgin outside of my room. It was stuck with simple tape. So I took it off and put it in the trash. The a few minutes ago, the maid came in. She noticed the picture in the trash bin, and looked at me with hate in her eyes. It was most likely her the one who stuck that catholic picture. But I don't see why would someone stick that outside my door. What I wrong to take picture off? What should I do?