So I totally just vaped on a plane. I was all ninja and no one noticed...I've learned it's best to not tell anyone, and not let anyone know. But no questions at security, no angry passengers, nothing. I was a little worried they would take the niquid in my carry-on. They took my water and my cranberry juice (a whole liter and I'd only taken one drink...wtf) but didn't even notice any of my vaquipmemt (just made that up). And now I have a 2 hour layover in Texas.