License plates. Not always right.
(Twitter fan on the left and … I’m not sure that second one even counts)
BG checks. Not always right.
(I poked my finger and put blood on the strip. Didn’t notice the meter wasn’t on. Didn’t want to poke again, so gave my finger an extra squeeze. Saw the spray in the light of the laptop – from the trackpad to the screen. Oops.)
Extending CGM sensor life. Not always right.
(It seems that maybe 16 days, not 17 was the correct sensor life for this one.)