Continuing Marriage questions: What's the most unnecessarily Gyan you ever got? By whom?

I'll go first: Dad's college friend asked why am I not married. He didn't want the answer anyway

So he goes: You know if women don’t marry, they start developing genetic disorders. It is science; the body needs marriage.

He had the audacity to say this loud, and when I retorted back, my mom was not happy coz I was being 'disrespectful'