One of the strongest reactions I've ever had came when I was sleeping one Saturday morning. I heard a loud crash and glass breaking, so I immediately roared "What the hell was that?" in some kind of guttural demon voice that I probably couldn't reproduce if I tried.
This just turned out to be my photo of Tupac Shakur falling off the wall, so my reaction wasn't really warranted. Still, I can only imagine how I would've freaked out if something I couldn't explain or even identify showed up in my bedroom.
The things we're about to see definitely fit that bill for the people who found them, so it might complete the scene to picture them reacting in their best metal voices. At the very least, it's funnier that way.