One of the two blondies has recently been having a hard time telling the truth. Sometimes these lies are so believable and said so convincingly I believe them. Other times the story is so bizarre it's quite obvious it's a lie.
Well, one day I was scolding said blondie and they absolutely insisted they didn't do it. I knew other wise. It just so happens in our house when you tell a lie a blue dot shows up on your forehead. I saw the blue dot. I told the blondie what I saw and what it meant. They immediately put their hand over their forehead. The dot moved to their hand. They ran to the mirror to see it. Only mommies and daddies see it. They were busted and they knew it. They fessed up. They apologized. We moved on.
Now anytime this particular blondie is having difficulty telling the truth they ask if I can see the dot. I can. They smile and quit pulling their shenanigan. It's worked quite well. I wish the blue dot would have been invented much sooner. It produces results. It keeps them honest. It's keeps me happy. I wonder how long before they catch on....