If you're old enough to have a job and to have a life, you use Facebook exactly as advertised, you look up old friends.
I can mourn internally, just be quiet about it. I have my moments but I'm not a real, expressive person, especially when it comes to like sadness.
I get scared to death when I see people who say they've found Jesus Christ, and they're out there, and I wonder, who's teaching them? Who's mentoring them?

