^ HUH?!
Is there no other way that you can teach the kids about 'not blindly accepting what authority figures have to say'?
I find that kids like plain talking, so tell them as it is, i.e. tell them that people can lie and deceive and so you should think about things before accepting what they have to say....
Grade 8, meaning about age 10-11 right? If so then let the innocent live innocently, they usually learn as they grow older....just my opinion, a bit like when parents don't tell their kids about Father Christmas being imaginary....
But if you really want to do this thing, don't you think the kids will start not trusting what you say, if you get what I'm saying?
How would you go about it? Curious........