If you had any sense of pride and independence, you'd have promptly asked them why they thought you were retarded.
Since you're you, you no doubt saw no problem with them thinking you're a moron. After all, everyone else does.
You really are nuts, aren't you?
You take a simple answer I gave and turn it into some nutjob rant.
I may not be intelligent but the moron is this person who lives in fear of some non existent boogey man.
Or the person who blithely wanders through life, thinking they're in some perfect fairyland where all boogeymen are "non-existent" and the only "right to privacy" that exists is when it comes to killing babies.
No, honey, as long as I look at you and think, "God, what a complete, perfect example of a waste of oxygen that is", I'd say I'm completely sane. If I ever think you've done anything right beyond breathing in and out, THAT'S when I'll start worrying about being nuts.
"Oh, please, Doctor, please question every aspect of my parenting! I'm much too stupid to be trusted with my own child without LOTS of supervision! Please, PLEASE, Mr. Bureaucrat, poke and pry into every aspect of how I live my personal life . . . except my abortions! My children only need protecting AFTER they leave the most hostile, dangerous environment of their entire lives . . . my uterus!"