Cloud chasing seems to be very popular with the younger vapers. When a teenager sees a human fog machine, they think it looks cool, and want to try it themselves. It's all about the attention for them. They do it in public, and worst of all in places such as grocery stores and other shopping outlets. It's this group of vapers that will quicken the banning of vaping. I get the whole cloud thing, I chase them a little too, but that is where the hobby aspect of vaping comes in, and I would never do it in a public place. Hell, I only vape where smoking is permitted, as I have respect for others. Just remember this….. for idiots, attention = cool. Why else do people pack so many subs into their cars to make other cars alarms go off when they drive by? Just my opinion.