It's not the younger ones, but their parents who train them. When I was young, about 45 years ago, I tried it. Got caught by a cop. He didn't say a word. Just stood there as I held the gas in my mouth. If I had swallowed it, he wouldn't even have known what I was doing. Yeah,right! Anyway, we became very good friends afterward. Of course, he always asked if I wanted a cigrette when I saw him! Just let the calls to 911 calm down for a few months. It will be easier to find a fuel-swallower when YOU catch him. Might even become good friends!