The fun work.

It's really interesting to learn about a person's history. It's especially interesting when they have a huge part of their life that was entirely unknown beforehand. It's basically fun on any level, though, so I'm sure I'm not saying anything new. It's one of the surprises I generally enjoy in life. Some other types of surprises(like a twist ending in a movie, or a unexpected gift) are generally okay but not as consistently appreciated for me, I suppose. I guess I'm sort of boring that way. Ha.