As I was writing about the two kids problem [1], I realized I could have used Smirk as an example, seeing how he has a new kid and all [2], but unfortunately, I mentioned that his new kid was a boy, thus making the chances of his other kid being a girl 50% (the reason: because you know yet more information in this case than just one of his kids is a boy—you know that his youngest is a boy, which removes both the girl/girl combination and boy/girl combination, leaving just the girl/boy and boy/boy, for a 50% chance of guessing correctly).
And even so, I doubt it would have been a good example anyway, as he now has two boys.
And now that I think about it, my friend Lorie has two daughters (a 50/50 chance [inside joke between the two of us –Sean]; Spring [3] has two boys, my friend Ken [4] has two daughters, and my friend Hoade has two daughters as well.
The only friend I can think of right now that has mixed kids is Bill, and he had, in order, four boys and two girls.
Heck, I can't think of anyone I know that has one boy and one girl.
I wonder what the odds of that are …