Tomb Stones???

The other night we were finishing up supper and chatting with the kids. The following converstaion came up between Austin and myself. Lets just say I was so shocked that I felt myself turn pale.

"Mommy, how do you get tomb stones?" (Austin)
"Excuse me?" (me)
"How do you get tomb stones?"
"Austin, you have to die to get a tomb stone. Why in this world do you want to know that for?"
"I was just wondering."
Jetta, who had been listening to our exchange and evidently saw the horror on my face, leaned over to him and said, "Austin, I think you mean kidney stones."

He turned red and chuckled and agreed with his sister! Whew! Am I glad. I was wondering which one of us he was thinking on doing in!!!