I made the title plural for a reason, today I attempted to take my injection and this is the third time the pen has screwed up! The needle went in and I waited and waited almost 2 minutes for the click that the medication had been injected and nothing. My wife took it away from my arm and the medicine shot all over my arm! These damn things are expensive and then my prescription comes up short and the pharmacy won't refill it for another week. Pharmacist said nothing he could do about it. Three times in 4 months! This sucks