I'm thinking of including a reoccuring B list T1 character in my developing animated series. what would be some not too blatant inside jokes I could include that only Diabetics and their loved ones would understand?

For instance, I was thinking of the old bugs bunny cartoon, where the witch flies off on her broomstick, and hair pins fall off behind her.

So whenever this T1 character leaves a situation, they leave behind a trail of test strips.