Caller: Messaged me asking “busy?”

I said they might have the wrong number and asked who they think I am. ‘Cindy’ responded: “ I just got back, and I found a number without a name in my address book. I decided who it was, so I took the liberty of sending a message to ask, who is this?”
Phishing for my name.

Random message "Busy? most likely a scam, I'm going to troll them.

Another I don’t leave a message call. I don’t answer numbers I don’t know.