"Just don't touch strangers."

Or... "Don't frisk any strangers." Or the more panicked... "You're not touching other people, are you?!" Take your pick. The three of us moms happily listened to our girls talk about their 'checkpoint' in the road, glad they were having fun at the campsite and creating beautiful chalk artwork, but were all suddenly and equally concerned when they got to the point where they patted us down. I'm not sure who said what but I know for certain that we all had a moment of great fear. Once they assured us that no actual touching was involved, that they did that only to us for effect, we took a collective deep breath and went on our way back towards the campfire. You can never be too careful, especially when camping...