Lighters and Flying

I take one of those acrylic humidors (jars) and place my Ronson right in the middle of all the cigars where you can't see the lighter,,,just the cigars surrounding it. A few times they take the jar out and look at it and then put it back as all they see is a full jar of cigars. If they confiscate the lighter no biggy,,,I still have a dozen of them and they are only $3.