The joys of having a 2 1/2 and 5 1/2 year old...
When the little brother has a word he gets in trouble for saying, the big sister has learned to spell it.
When said brother says bad word, big sister spells the word for parents to "share" what little brother has said.
Little brother now knows how to say and spell the word he is not supposed to say.
It's a beautiful cycle.