On a completely unrelate note, my sister in law (at 58 years old) found out her older brother was not her full brother, but a half brother. Ancestry.com. These secrets will be discovered at some point.
a very good friend of mine just discovered himself and his siblings all had different fathers, and the man they thought was their father had sired none of them ...
turns out that they were the result of early experiments in artificial insemination conducted by the Navy, and my friend was sired by a highly respected Navy surgeon who went on to rise very high in the ranks ...
my friend was in his late 60’s when this was discovered, and to him, it was mostly just one more fantastic story for him to tell ...