Bittersweet treat

I think one of the only benefits of getting up early to see M. off back to England, Is that there is a Paul bakery at the French side of the airport in Basel, and this is my somewhat squashed treat to myself.
M. Has done a great job, did washing without shrinking anything, and has stocked my fridge. Unfortunately, neither of us realized that I would now I have a problem slicing into the watermelon we bought yesterday.