In reality, it doesn’t actually work like this. Instead, imagine your favourite ‘naughty’ food is chocolate. You wake up one morning and find your kitchen cupboards filled to the brim with chocolate: all types, all your favourites, and all ones you’ve never tried before. You open the fridge and that too is filled with delicious chocolate cakes, chocolate mousses, chocolate pastries, chocolate eclairs. You run the tap and outcomes a never-ending supply of chocolate milk. And every time you eat chocolate it magically reappears, the supply never dwindling. You eat chocolate for breakfast, lunch and dinner. In fact, if you don’t eat chocolate, you are insulted and told you should stick to your chocolate diet. The excitement soon wears off and you begin to start dreading your next meal. You notice that you’re craving other foods, but eat chocolate because you ‘should’.