There is no such thing as profanity. Only expression. As long as you are not forced into hearing/seeing/experiencing the speach/action/presentation, it is not profane. If you enjoy the experience, it is fine if not, don't do it again.
How old is the client? What grade are they in?
The public school environment is one of forced attendance. Compliance to arbitrary rules cannot be expected except by sheep. People yearn for freedom and seek it out whenever possible. If the (warning legal term/babble approaching) ALEGEDED profanity was directed at a school official it is a call for freedom, if towards a fellow student, it is a personal matter between 2 sovereign individuals and should be settled civilly in person or in court.
Dam* (figure it out) I can't believe I posted this.