More interestingly he informed me that at least once a week a ‘mystery passenger’ with a banned item (sometimes as small a lipstick) deliberately passes through each terminal's security, and if the infringement is not spotted and challenged, the X-ray operator is immediately taken off duty and disciplined or usually sacked!
Indeed. I have been told they operate a '3 strikes and you're out' policy. Management by fear. No wonder the staff are edgy. What a great way to run a business.