"Unfortunately, a mishap occurred resulting in an unexpected nipple slip ." "It was an unintentional circumstance." "The revealing of the nipple was unforeseen." "It was an incidental clothing mishap." "The accident came as a shock to everyone present." "Precautions have been implemented to ensure this won't happen again." "We sincerely apologize for any inconvenience caused." "Rest assured, we are taking this matter seriously."