Many aspects of human nature are very puzzling.
Take celibacy.
This can be a choice in life, or a condition imposed by environmental factors.
While attending a marriage encounter weekend, Trevor and Kylie listened to the instructor declare, “It is essential that husbands and wives know the things that are important to each other.”
He addressed the men, “Can you each name and describe your wife’s favourite flower?”
Trevor leaned over, touched Kylie’s arm gently and whispered, “It’s the white, self-raising brand, isn’t it?”
Thus began Trevor’s life of celibacy.