I was never made fun of for having Diabetes... Frankly, I think that's kind of lame, but then again, people will make fun of anyone who's different in some way.
I would just laugh along with them... I know it may not be funny, but if you show that it isn't a big deal for you, they'll be less likely to make it one. And they'll probably bore themselves sooner or later, b/c they cannot get a rise out of you...
Hang in there
