I missed a call from a friend in Vancouver - I'm in Ontario. When I checked the messages, it was obviously a pocket call. She was talking to someone about viruses, not leaving a message for me.
When I called her later and asked about the virus conversation, she said that she was in a call with a researcher in Edmonton, Alberta. Somehow, her phone had called me, went into messaging and recorded her call as if it was a three-way conversation with my phone.
Has this happened to you? The NSA is listening to everything, and presumably recording everything - but why on my phone?