"Unfortunately, a mishap occurred resulting in an unexpected nipple slip ." "The occurrence happened by mistake." "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 apologize for the disruption and any distress it may have caused." "We assure you, this matter is being treated with utmost seriousness."