text:  I recently did a survey of over 6,000 staff who work at self-checkout stations. And one of the questions we asked them was, how often have you been a victim of violence and verbal abuse in that space? And sadly, about a third of them said it was happening on a weekly basis in that environment. And I think one of the challenges you've got in that space is that if the systems don't work well, if you don't have enough staff employed in those spaces, then inevitably, because of the alerting systems that are in place around age and weight and so on,