I suspect...

... that it's totally middle-aged to be tickled by a cheese grater.

Sometimes it's the simple things in life that make me smile the most. Like bus boy and dead flowers and this very simple grating implement that cost me about three quid but was worth every penny. I don't use it very often but every time I do, I smile a great big satisfied smile that I don't have to fanny around with that stupid tupperware cheese grating tub from the big blue shop.

Middle-aged for sure!

The old believe everything, the middle-aged suspect everything, the young know everything.
Oscar Wilde