In Tabers Cyclopedic Medical Dictionary (edition 15) on page 1451 begins an article entitled rape and sexual assault prevention Towards the end of the article is the following paragraph.

If forced to participate in oral sex, i.e., fellatio, and you feel your life is in danger, then a vigorous, quick, and forceful attempt to amputate the penis by biting could completely demotivate the rapist because of extreme pain. You should immediately flee at that time.

To me that last sentence seems a prime candidate for the under statement of the year award.