No kidding. I learned never to tell a guy where you work unless you'd welcome a visit from him.
I was out skiing and doubled up on a chair lift with this guy. He was quite chatty, as many people are, asking me about my life, and so on. Then I skiied down and ended up on the chair lift with him again (coincidence? I don't think so. But the ski hill doesn't like people riding solo when it's busy and prefers that solo skiers double up). He seemed nice enough, though a little too interested. He asked where I worked, and I told him. (I know, dumb).
So a week or so later, I wasn't working and a co-worker called me to let me know that "Alan from Ski Hill" had come in asking about me. She said she told him I was off and she didn't know when I was working next. (Good answer, CW!) I then had this nagging worry in the back of my mind for the next few weeks, wondering if he was going to return and if he did, what was I going to say? He never did though. Thankfully I think he was just hopeful rather than creepy. But never again did I share my work location with a stranger.