Leftover doses - anyone else?

[stagebox3937]

Possibly the new pen simply has extra clicks. I count them, allowing one click at most for priming, and I remember extra clicks in my previous pen as well. Tonight I use the last dose in my current pen and I'll say what's left over. My guess is the same number, even on a 5mg pen?

 

[CatJourney]

Wait, isn't a 2.5mg pen supposed to only hold four shots total? How do you still have four left? Doesn't that mean the pen was never touched?