Called my cellphone - no message left.

They called my cell phone just now and did not leave a message when I did not answer.

Robo-Jeff called to congratulate me on winning a free trip.  Scam.

Robo-dialer telling me I'd won a free cruise to the Bahamas for taking a short survey. When asked if I was ready to get started, I replied, "Remove me from your list" and the system was smart enough to recognize the request and hopefully process it. Never got to anyone live.