Fire Safety Training

At the smaller school I work in, there is an annual fire safety day. A couple of men set up a short tent/tunnel and fill it with harmless, cosmetic smoke. The kids have to crawl their way through the tent to the other side. I couldn't resist trying it, since even the principal was testing it out. There is no visibility once you're inside. I'm not sure how effective this is in training the kids to escape a fire, but it was entertaining none-the-less.