Most children know a simple nursery rhyme: if you step on a crack, you’ll break your mother’s back. They sing it to themselves while skipping rope or playing hopscotch, and never give much thought to its true ramifications. For if they did, they might exercise just a bit more caution when hurrying down the sidewalk to get to the ice cream truck. It’s frankly amazing that mothers everywhere aren’t confined to wheelchairs and hospital emergency rooms considering the number of cracks in the world.
This also presents a hidden danger: malicious children can use this form of bad luck to physically assault their parents. If a mother instructs her son to stop playing outside and do his chores, all the child has to do is locate a nearby crack and stamp on it thoroughly. The mother will be permanently crippled, and he will get to play happily for hours until social services comes to take him away. It’s therefore a good idea for parents to fill in any cracks on the sidewalk with spackle until proper moral values can be taught.