Reminds me of the time i asked my 2 year old grandson if he was telling Nanny fibs. He asked me how i knew he was fibbing.....i told him when children tell fibs they get a mark on their forehead that only a nanny can see. After that explanation, if ever i asked him if he was telling nanny fibs, he would cover his forhead with his hand and say no.... It worked for a few years. LOL