With Joy and Anna's shouting, the guards' are momentarily distracted by the noise behind them. You use the opportunity to grab a metal handle on the side of the box, used to help steady it, and pull hard.
"No!" one of the crew members cries out, diving towards you.
This causes one of the guards to turn back towards you just as the tall box behind to topple. He takes two shots, and you quickly step behind the box as it goes down. One shot hits the box, but a second bullet misses completely and hits one of the others guards standing behind you. "Hold fire!" A final third bullet hits the box and ricochets. There is the sound of glass breaking.
Several of those on your side of the box dive to the side as the shots are fired. You stay hunched down behind the box, listening to the vilest of curses coming from inside.
"Don't move, asshole!" one guard says from the side. His gun pointed right at your face.
"Stop him!" you hear Joy shouting from the other side of the area. "He released Anna and... LOOK OUT!"
A large form of fur and muscle lunges through the air and grabs the guard standing over you from behind. Claws and teeth tear the man's throat and chest open in a heartbeat. Instinctively you back away from your poor hiding position as Tom devours his meal.
Gun shots start ringing out again. You see Joy dive into the English Werewolf Exhibit anti-room and slam the heavy door shut with a click. However you see the key hole on the door.
You can see the dropped gun and the keyring lying on the ground in two different spots away from each other.