I think the best way of dealing with type 1 and injections is to leave the type 1 find out for themselves without the injection, eat food, and then find themselves feeling extremely thirsty, tired, on the loo all the time and then wish very much that they had given themselves the jab which would have then prevented the high bg levels making them feel awful. Sometimes nagging, doesn't do a lot of good as its human to argue back but all type 1's learn the error of their ways.