My mum is paying for the children and me to go to London Zoo with her tomorrow.
I told ds and dd this evening as they were going to bed.
I said 'we're going to the zoo tomorrow. We're going to see tigers, and giraffes. Oh, and we're going to see Nan'.
Cue the pair of them rofl (And I do mean ROFL) with me startled until ds pipes up 'No not Nan in the zoo '