OK, I need to share this very specific aggravation, since most people would have no clue what I’m talking about.
You’ve just put a fresh sensor in. Expensive but worth it. It’s on your stomach, and held down by the adhesive it comes with. Plus a few strips of IV3000 framing the sensor, just for good measure.
A few hours later, after it’s up and running, you pull your sweatshirt off over your head. Yep, off comes the sensor.