If you found out a fellow security guard was accessing information he shouldn't be, but in your opinion it was important information, what would you do?

Imagine you have been called to handle an emergency on the 10th floor of a building, but six guests are waiting to be checked in at the front desk. It's late at night and you are momentarily alone at the front desk. What would you do?

If you are working at an event where there is a large, rowdy crowd, what steps could you take to make sure the event does not become chaotic or dangerous?