You're on a never-ending journey and someone in the back seat is persistently asking if we're there yet, despite being sat in a traffic jam on the motorway (usually the M25, let's face it) and obviously not being at your destination.
We've all been there.
Turns out even Google Maps can run out of patience in the same situation. When you're in navigation mode, tap on the microphone and ask "are we there yet?"
On the first occasion, the ever-trusty app will tell you how long it'll be until you're at your destination. Ask a second or third time, and it will simply respond "no".
But when you test Google Maps and ask it a fourth time, it snappily replies: "If you ask me again, we won't stop for ice cream" -- oooh, sassy.