Strengthening the Union

We have just noticed that the Government Front-Bench spokesperson has scuttled out of the Chamber without listening to all of the Front-Bench speakers in this debate. It was the Government who called this debate. They could have called it on anything else, but they chose to focus on strengthening the Union. We now no longer have a Front-Bench spokesperson to listen to the Front-Bench speeches. Surely that is not in order; there should be somebody there.