Splatted my road bike into the back of a car a few weeks ago (newly surface dressed road, the car stopped, I didn't). Incident detection went off like a charm and though I was conscious I let it time out and send the messages so that my riding partner would be alerted.
One of those things you don't think you need until you do. Doesn't look like I'll be riding again for some time - if ever - but it's worth keeping it turned on and accepting that you might have to cancel the occasional false alarm.
Thanks Garmin.
