I was talking once about skunks spraying people with another child. My nephew, who was about 5 at the time, overheard me. He stood right up, leaned back, put his arms on his hip and let out a guffaw. His persona entirely changed. "Boy, that's a mess! You'll have to take a bath in tomato juice to get that smell off!" He shook his head and went back to playing.
I called my sister and asked "When the heck did he get sprayed by a skunk?" She told me he never did. Phone still in hand, I asked him "How did you know to take a bath in tomato juice?" He said "Because I got sprayed before!" he told me firmly. I asked him when. "Oh, before I was a baby" he said, real casually before running off to play.