Karen probably should leave well enough alone when she stumbles upon the body laying collapsed in the hallway. There's blood on the walls and it doesn't take longer than a few seconds to catch a glance of his busted up knuckles. The issue with Karen is that she never leaves anything alone, especially not when her curiosity is piqued and she thinks she might be able to help someone. She puts forth the appearance of caution as she edges in closer to him, crouching down so she can gently reach out to touch at his shoulder.

As soon as her fingers make contact with him she recoils, trying to lean back out of range. Without really knowing for sure what's happened here, she sure as hell doesn't want to be too close if he wakes up thinking she's the one that knocked him out. Of course, the blood on the wall and his hand do tell a pretty clear story. He's likely just an idiot that worked himself up and is paying the price.

"It's time to wake up, tough guy. You can't stay here."