I'm wondering how many of you will chuckle at this question... and then recognize yourselves in this situation!
Have you ever forgotten to remove an old infusion set after you have inserted a new one? I have! Then, after I disconnect (to shower, for example) then come to reconnect, I find two separate infusion sites and it takes me a few seconds to remember which is the new one and which one I have to remove! Mayve it's just my mind going with age?!?