User blog comment:Battlefield4us/5 Days Left - The Beacon Prom anaylsis/@comment-32598036-20140719164926/@comment-4010415-20140719165821

The guards mean that Ozpin is being cautious. That is, assuming the dance is taking place at Beacon. Why wouldn't it, though? They have a ball room, which is where the first-years slept on their first night at Beacon.

It's too bad that it's a little too late to be cautious, considering Mercury and Emerald's infiltration.