Like "Hi hjenkins! Great to see you. Wow, this is just amazing. I can't believe the insensitive things people come up with, and how they feel it is perfectly acceptable to say whatever is on their mind. Regardless of how the other person might be affected. I feel like diabetics are often subjected to unkindness. Comments about what they are eating or unwanted advice. And as you experience, comments about the effects of diabetes. I would just chalk it up to the ignorance of other people, hold your head high, and immerse yourself in your holidays. Really sorry to hear this, my friend. "