I don't know. It's not that I wouldn't relate anything personal at all to strangers that I connect with. If I know for sure that I'll never see them again, it sometimes is even helpful to discuss some things, knowing that it really doesn't matter. I also would relate a lot of information that many other people might consider personal, but it's all stuff that I've worked through and am quite comfortable with. That kind of stuff may make some people feel like we've had a moment, when in fact I'd feel equally comfortable saying it to almost anyone. If it's a deep part of who I am, sensitive information (either my own or others' close to me), or it gives the person power to affect me that they could misuse, then those are the kinds of things I don't share.