I would say....It looks like D1 is going to have a 1/2 sibling!!! But thats just me....I get things out in the open!!
I'm sort of willing to pretend like I don't notice. Because if they know that I know I don't want them to start pondering how to use it legally. Having them worry that I know seems more useful psychologically speaking.
"You can't reason someone out of a position they didn't reason themselves into."
