Even this one: "So say I wanted to put that stuff on my face, I could turn blue?"
Karason's answer to that last question? "It's not something I would recommend you do. But that's what happened to me."
But even as he cautions those 12-year-olds not to do what he did, it might shock you to learn that he hasn't give up the habit himself. He says he drinks colloidal silver about once a month, still believing it has health benefits.
And though Karason claims to have made peace with his argyria, he's recently been using an ionic foot-bath, a totally unproven treatment that promises to rid him of his discoloration.
And if there was a proven treatment that he knew would work, Karason says he might or might not take it.
"I mean, once you turn blue, you sort of resign yourself to being different," he said.
Ironically, his favorite color used to be blue; he says that preference changed along with his skin.
For more information about argyria, click here.