[pixl97]

>and recognize the symptoms, because of such issues.

There are a few problems with this. I'm a T1D and your sugar level can change very rapidly and you can be near a critical situation before you feel it. Even worse is an issue after you fall asleep. Tell your friend you'd rather not find him dead in the morning.

[tuetuopay]

Well thanks for the warning. I'm pretty sure he still has the device for those situations (he's a bonehead sometimes but not stupid), and it's more likely that my recollection is more dramatic than reality. What I'm sure is, he does not actively use it for daily life and learnt himself.