Well, you try to shake it.

As soon as you get your hands on the bars pain rips through your body. You feel you head hit the floor with a hollow clang.

The walls on either side erupt with bizarre noises, hissing, yelping, clattering and maybe laughing. You're disoriented and rightfully terrified.

Actually, you realized after a moment that you're not really terrified at all. You know you should be, but it kind of feels nice sitting on the metal floor. It's cool against your skin. You like it.

Nothing seems to hurt anymore. Everything would be ok if not for the howling from all around. Your ears are ringing with it.