The whole thing feels like a coin toss, depending on the agent you get and their mood that day! I had a similar experience recently with my disposable weed pen. I figured since it was "disposable" it might be fine, but still, I had that tiny 1% of doubt when passing through security. Sure enough, they pulled me aside for extra screening, which was a little nerve-wracking. Same story with vape pens—they’re easy to grab, but when it comes to the airport, even the smallest things like toothpaste or a vape can spark random hassle.