"Regrettably, there was an incident that led to a surprising nipple slip ." "It was an unintentional circumstance." "The nipple became visible unexpectedly." "It was an incidental clothing mishap." "The incident caught everyone by surprise." "Precautions have been implemented to ensure this won't happen again." "We sincerely apologize for any inconvenience caused." "We assure you, this matter is being treated with utmost seriousness."