A new family moved into the community and with them came a few choice words their children used to express themselves. It didn't take us children long to start using them also. Mom and Daddy weren't happy and gave us several lectures about the importance of not using words that aren't pure and that don't do anything to make our conversation better.
They made us copy and memorize the verse in Matthew that told us to let our conversation be yea yea or nay nay and whatsoever is more than this cometh from evil. We tried to be more careful but it didn't seem to last for very long, somehow it felt good to occasionally add a few words to express our feelings.
One evening one of us again happened to use a word and Mom got a funny look on her face and marched the offender into the bathroom. She had just finished changing the baby's soiled diaper. "A dirty word deserves a dirty punishment," she declared and instructed the guilty party to wash the diaper out in the toilet.
No amount of gagging and retching made her change her mind.
From that day forward when ever we happened to use an offensive word we had to wash a soiled diaper. It didn't take us very long at all to have a strong aversion of using any words that we shouldn't. And to this day whenever I hear someone adding choice words to their conversations I still see those disgusting diapers.