I remember a valentine's day card that I found soon after my Dx. It had all this candy, cookies and other sweets on the front. It said "if you won't be my Valentine...." On the inside "...I'll just eat my way into a coma"
I went home, got my wallet, and bought every copy of that card. I sent about 10 of them to friends who knew about my Dx. Only one wasw offended. But then she was easily offended anyway.
As long as I (or another person with D) tells the joke, I'm fine with it - I'm Swedish and I can tell Lena and Ole jokes for hours.