Um, don’t do it?
There really isn’t a need to wax eloquent on this topic. No matter the age, your parents are your parents are your parents and they deserve your respect. You don’t have to always like them, agree with them, approve of their behavior, understand their choices, or listen to them.
But you have to respect them.
This is the way I feel about my parents, and I hope that I raise my children to feel this way about me.
And that’s all I have to say about that.