The Bag Tax Loop Hole

As someone who spends most of the day driving around as part of my job, I occasionally frequent "The Scottish Restaurant" - McDonalds Drive Through (or is it Thru?).

This morning I ordered my favourite breakfast treat: the sausage and egg McMuffin breakfast meal. This consists of a sausage and egg muffin, a hash brown, and a coffee.

At the drive through/thru I was asked if I would like a bag. In Wales bags cost 5p. This is an environmental tax established by the Welsh Government and accounts for plastic and paper bags used to carry purchases. However, one of the stipulations of the tax is that if loose food is to be purchased then the bag must be provided free of charge to preserve hygiene.

This is what I got handed to me this morning. As you can see my hash brown was lose thus requiring a bag.
The muffin didn't. When I ordered I was asked if I needed a bag. I said no but got one anyway. If I had said yes I would have paid 5p for the muffin to be put on the bag with the hash brown! How daft is that.