I got to admit. Back in 1979 approaching a chrismas break at school in an English class. A teacher who I once respected waltzed around the room offering a tin of quality street.. I respectfully declined. Then was barracked & shown up as a diabetic when she was turned down.. "WEll. If you expect me to give sweets to a DIABETIC!"
Edit; she didn't last that long in the job a short while later..
As an adult , touring with a rock band in Europe .. A fan offered to buy me a beer after a gig.. (Call it a gift.) Not only did I not need to have the hassle of bolusing for one. I was also "designated driver" back to the hotel for the rest of the band.. I was happy to drink with this guy. But requested it was a "Diet Coke." Or "Coke light" in that part of the world....
The response.. "Coke light???! Are you gay??!! Yes, I replied.. Just to avoid explaining the carb content & related other stuff injecting & driving on the right. Late at night. "Customer service" as a musician. Still on the "clock."
There are a lot of misunderstanding of the differences... Lucky for me. I managed to shrug these fools off from an early age..
I've seen far more than can be documented here...
It not about understanding the differences.. Just accept the difference.