Years ago when the children were small we accompanied the children's grandmother (their fathers mother) to an unfamiliar large trading estate for her to collect something.
Grandma had form for setting off on journeys without knowing the end address !
We were sat in the car on a hot day whilst Grandma drove round and round. And round and round, with my children and I losing the will to live.
I said I'd get out and ask for help but the cantankerous old girl would not stop and was adamant she could find the place!
We kept passing the same car mechanic and double glazing firm but she would not give in!
My son with a gleam in his eye said he needed to go to the toilet . He didn't but it was a cunning plan to make Grandma pull over or go home !
"There's an empty bottle in the back", she snapped and indeed there was!
"But it's a number 2!" my son countered!
Grandma's immortal words, "Clutch it up!" 
Thankfully that made the children howl with laughter and miraculously the business she was trying to find suddenly appeared and she pulled in!
Years later the children now adults laugh at "Clutch it up"! 