What my wife did was wrong. What you wife did was reprehensible.
However, in telling the 16-year-old, you did the right thing. I think you and I are on the same page here. Do the right thing. And teach the kids to do so as well. Sometimes, we break the DB rules in doing so.
There was no introduction in my case. Shrek would not risk it.
My boys will be told the truth. I will give her the option of telling them herself, or I will tell them.
I owe it to them. As Theoden would say, "How else will they learn?"