I once made the faux pas of mentioning the blue eye thing to a couple who each had blue eyes shortly before they had their first child, a healthy, brown eyed boy.

I’m not sure if it’s really 100% or if it’s like colorblind women, but it’s not my business either way and I definitely shouldn’t have gotten myself involved.

I was actually worried about this as a kid, after learning that blue + brown = brown, brown + brown = brown, but only blue + blue = blue.