Some jokes are meant to be told directly. If you have someone else to relay the same jokes to another person, the effects may be opposite.
I have had it once and I would never want the history to be repeated.
Sometimes, things cannot be helped and we can only hope for the best that none of our friends has “itchy” mouth; it also takes some brains to convey words.
Do we have to guard against friends? Sometimes, we cannot deny phobia and jokes have to be filtered.