After reading that post, it reminds of the old joke of 6 blind men trying to describe what an elephant looks like as each one of them touched different parts.
As far as the 6 year olds go, my first cousins teach their kids not to touch dogs using the phrase "That dog will bite you!"
Another story is this. When I lived in VA, I was walking my then "Unknown" breed dog on a leash on the side walk with a gentle leader on her head. WE walked by some kids who didn't speak english and one of the girls was so scared of dogs she tripped over her own feet and knocked the back of her head on the curb. I stayed with her (and my dog too since i had her on the leash) to make sure she was ok but she wouldn't get up. She had repositioned herself to where she was face down.
Meanwhile my dog was looking around minding her own business ignoring the girl when all of a sudden animal control drove up asking me "to release the hold my dog had on the girl" over the megaphone.
Once I stood up, the girl then stood up and ran away across the street.
I asked the animal controll guy (who was cool) what was that all about and he said he had to do it that way because the girl's parents were across the street watching.
Once I told him my side of the story, he understood and said no problem. Before he drove off, he added that if I hadn't stayed and the girl had been really hurt then I could have been sued to cover the cost of her injuries. GO FIGURE!