Connor uses a Novolog Novopen Jr. for fast-acting insulin. His new-ish school nurse sent this home today. What do you think? What is your reaction? Have you ever seen a Novolog pen cartridge with a "stopper that balloons"? I just sent the manufacturer instructions to her because she didn't know about priming the pen before giving an injection. Now I don't know what to make of this new cartridge/pen issue. Any thoughts? Thanks!