ANSWER:

You must surround yourself with practicing brothers all the time who don’t use profanity. Whatever goes through your mind is forgiven as long as you don’t say it verbally nor act upon it. 

QUESTION: In my community, many people use rude words. Thankfully, I don’t use them, but since I’m surrounded by it, I hear those words often. Sometimes, they get stuck in my head, and I accidentally think or almost say them. Am I sinful for that? and What should I do about this situation?