Just shows, you often get the better shot spontaneously rather than getting the subject from saying it!
In this case, instead of getting Ben to say "Cheese!", he smelt it, and you snapped his pic right on the nose!
If I might smell so, it's a nifty, snifty, clever (sorry, I nearly said "cheddar"!) slice de la vie (sorry, I nearly said "brie"!)
Look, really, I mustn't stilt on like this and let you return to
cheese-induced dreams of your Dorset Blue Vinney Valley,
where are embedded roots of your family cheese.