TORT QUESTION: In 2016 Old Trafford (the stadium of Manchester United Football Club) was evacuated minutes before the start of a major football match. A 'suspect device' had been found and a security alert was triggered. It was later admitted that the 'device' had been placed there by the security firm in charge of stadium safety as part of an earlier security exercise, but then forgotten and left there by mistake.

The evacuation was achieved successfully, but could the security firm face any claims in negligence for a nervous shock?