oh my god this unlocked a part of my brain i didnt know was there there was also the step on a line and youll break your fathers spine the first time i was told this in childhood it scared me so bad i trained myself to not step on the cracks in the sidewalks there was also an episode of a tv show as a kid i think fairly odd parents where everything timmy said came true and he stepped on a crack and it showed his moms back breaking in a cartoon way so not like scary and god i didnt shake that until i was probably in my teens