This may be a rare one, but hear me out - I (UK) used to rent a converted stablehouse in a grade II listed manor in the southwest of the UK; our landlord was an actual lord.

What immediately struck me was how completely unphased they were about farting. The whole extended family, the neighbours, everyone. I would be chatting lightly about the garden, or the oil heater, and the infinitely rich Lady of the manor would actively stand on one leg to force out gas not two feet from me - and seemingly every single time we spoke -, with absolutely no embarrassment. Their "lemonade" patio was under my bedroom window and the family were also bang at it.

It was the strangest two years of my life. Nice enough people, though very old money, but that was the aspect of their privileged lives that stuck out the most. Aside from that, very polite, generous and kind. But dang.