So there I am, at the dentist to get my tooth looked at (it was fine) when the dentist says to me "I heard you decided not to have your son's cavity filled."
"Yes," I said. "I don't see the point in putting my 8 year old son through the drill to deal with a cavity that is on a baby tooth."
"Still you should really make sure he gets taken care of, your son needs to have that filled." he responded.
Rather than debate it I responded, "Hey look, if social services can't get me to listen to reasoning when they visit me, what chance do you think you have?"
To which he said "but there's a chance it could damage his permanent tooth."
To which I responded "That's a chance I'm willing for him to take."
Sometimes, absurd responses can side-step debates, especially when you're natural inclination is to be a goof off anyway.
I definitely agree to keep an eye on the baby tooth that has a cavity to make sure it doesn't hurt or get serious. But growing up I knew kids whose baby teeth literally were rotting out. I'm not subjecting my 8 year old to a dentist's drill unless I have no other choice. The mere fear of the dentist's drill has been enough to get my son to start taking brushing his teeth more seriously.
"Besides," I told my son, "I read on the Internet how to drill onto teeth myself so if you don't brush your teeth, I'll drill the cavity out myself."
He's upstairs brushing his teeth again as I write this.