What shocked you today?

What shocked you today?
A man who never existed had a child.
Clearly, you should be thinking:"how can someone who never existed have a child?" 
well, here is the story,
A Washington family had just had a child when the father decided to take a paternity test. when he got the results back, he was shocked.
He was not the Father of the child.
The family decided that he will take a 23andMe test, and the result shocked them even more.
The father of the child was actually the uncle.
This could not make any sense to them, though, since the child was made through vitro fertilization, and only the father was giving sperm sample.
what the father learned from this changed his perspective on who he was as a person.
The father was a chimera who absorbed his fraternal twin, who also happened to be a male.
inside the father's sperm was 90% himself and 10% his twin brother.
his son only inherited the absorbed brother's sperm, though.
from this, a man who was never born managed to have a child of his own. 
Thanks for reading.