Love it, great find.
Sticking it to the man! I love it !After I have purchased a new tub of Lurpak, I remove the lid and peal back the inner foil carefully. Then write a rude word in the butter, with a cocktail stick or such like. Then re-seal it, put the lid back on and pop it in the fridge. So when my wife goes to use the butter she gets a surprise. It's like totally crazy in our house. You can certainly do it with other brands of yellow fats too. And probably use something over than a cocktail stick too. It's really easy try it.
Jim you are clearly a danger to yourself and others with batshit-crazy stunts like that. We suggest you turn yourself in at the earliest opportunity.