For my fridge.
To stop my 12 year old stealing food and lying about it. With his mouth full of said food. All smeared round his face and dropped on the floor and over the clean laundry that was waiting to go in the drier...
It's not a hunger thing. It's a cheese thing. He can eat his dinner (generally a good eater, not fussy) then as soon as I leave the room, he is stuffing his face with cheese.
I try not to buy it too often, as he just eats the lot. But if we have pizza or baked potato, I buy some.