I get notifications that my AirPods are 'left behind' at the gym when I'm driving home, even though... I'm wearing them in the car and the case is in my pocket.

Yet... the one time I actually forgot the case in my gym locker, and got to the car... nothing.

Happens sometimes when I leave the office too; half a mile from the office I get an alert that I've left my AirPods at the office even though - again - I'm wearing them, they're connected to the phone I'm holding which is also with me (and moving) and the case is with me too.

This will become a 'boy who cried wolf' situation soon, if it's not already there.