So... there are these two old ladies...

Upstairs in a certain shopping Arcade in Lambton Quay.

And they're both talking on cellphones, but they're around the corner from each other & can't see the other.

Old Lady 1: "Which cafe do you mean? Upstairs or downstairs?"
Old Lady 2: "Upstairs, I'm waiting here for you now."
Old Lady 1: "Well I'm upstairs, and I'm at the cafe, but I can't see you."

etc...

And like, if they reached out towards the corner, they could hold hands, they're that close.

So helpfully, I caught the eye of Old Lady 2, and pointed round the corner... cue much Old Lady laughter...