The job of every guard is to look out for threats.
And this "threat" has already had an exception written into the Security staffing standards. So, despite what that individual thinks, the item is not a security threat and the staff member is in the wrong.
Apologies have been made, and training hopefully improved.
Got a pair of rescue dogs ... neither of whome can cope.
The younger one is OK with the first couple of fireworks. But once they become more consistent he gets anxious. I think we can train through that though. We've only had him this year, so this is our first experience.
The older girl. As soon as the first bang goes off she's a shaking mess. Refuses treats and training just causes her more anxiety. She will completely ignore loud bangs on the TV, so that training method on other days doesn't help.