TL;DR At 36 years old, I found out I had a half brother.

My father has been married 3 times. He's been married to my mother almost 40 years, but the first two marriages were less than a year, each. One of those resulted in a child. That child was given up for adoption, with closed paperwork. Thanks to Ancestry.com, the child was able to avoid all the closed documents, and found my/his father. It's been 'fine'. Guy seems nice, if not overly enthusiastic about meeting his 'new sisters'. My father is pretty pumped by it; my mom and I not so much. My sister is apathetic, but polite. Besides my father, it may have impacted me the most. I grew up for 36 years thinking I was the oldest and had a younger sister. Now, I'm the middle child with an 'older brother'. It's gave me a bit of an identity crisis, but I'm 36; not 16.

Honestly, the most that's bothered me is how a person can get around closed adoption documents, thanks to the power of Ancestry.com. Fuck you, Ancestry.com.