> ...your scenario just does not happen.

It happens to us all of the time.

My partner is on a conference call, I hop in the car to go run an errand. Suddenly I'm on a conference call.

My partner is in the kitchen listening to a podcast, I hop in our other car and suddenly I'm listening to a podcast.

My partner is sitting in the car having a driveway moment, I arrive home with the other car and now I'm having her driveway moment.

My partner is on a conference call at her desk and picks up her phone to respond to a message and then you hear "shit shit shit, hold on a moment!" and then frantic typing and clicking.