How dirty were children in the 1950s? I would have to be REALLY dirty to be unrecognizable. I always thought the kids looked liked the squeaky-clean kids from Leave it to Beaver, but I know better thanks to Mr. Bubble. Now I picture mud-caked filthy kids being dunked into steaming hot baths of Mr. Bubble by their parents once a month. Those parents screaming with anger when they realize that the excrement smeared goblin that they had been feeding for the last 30 days was actually the neighbor’s kid.