Now that was weird... I just received a phone call and the woman who called me, somebody I have never talked to before, sounded exactly like my best friend's mother, a woman that I have known for decades. Not only the tone of her voice was the same, but also her pronunciation and her somewhat slow way of speaking.
It was so confusing that I had huge difficulties to concentrate on what she was saying, so much that I had to apologize and explain to her what was going on. She seemed a bit baffled at first, but then giggled and asked me to give her regards to her voice doppelganger when I see her.
I have never encountered anything like this before. Really strange.