"Regrettably, there was an incident that led to a surprising nipple slip ." "It was an unintentional circumstance." "The nipple exposure was unexpected." "It was an incidental clothing mishap." "The mishap startled all onlookers." "Precautions have been implemented to ensure this won't happen again." "We deeply regret any trouble this may have caused." "We assure you, this matter is being treated with utmost seriousness."