I know exactly where you're coming from, there's some funny things that have happened that I'd love to share but there's some that I just can't talk about, ever.
Besides that, a friend of my dad's (a woman) googled me for some weird reason and told him about a website of mine she found (was a tech site, now defunct) and sent him a picture off of it, but the whole thing seemed creepy. A lot of bad stuff went down between my dad and I that I talk about openly so others can learn from my experience, but at the same time, he doesn't need to read about it or hear it from someone else. I've learnt not to do that again.
So I feel where you're coming from, the whole situation kinda blows.