There are a few ways to deal with your problem. Out of curiosity - what do you consider "suggestive" comments? Regardless - to make a new and cleaner brain you need to go into the "brain editor" and select "create new project". Press "next" to get through the first two screens and then name the new brain and a folder name. I'd suggest "bible boy" for the name and "clean" for the folder.
On the next screen you'll see what may be an overwhelming number of choices. Just on a guess you'll need to turn off [click with the mouse so the check mark goes away] "Emotional reactions...", "Insult and swearing...", "Love.", "Include small talk function.", and maybe the "Make talk Functions.".
This should take care of much of the offensive, colorful conversation. You're other option is go into the "tools" menu in the brain function of the Brain Editor and manually remove all of the potentially offensive material. I tend to think it would be a lot easier to make a new brain project.
Hope that helps,
WholyChao
