Sandy's eyes go wide.  Not so much because of the man's face, or lack there of, but because Stephanie is getting brutally raped.  She sneers, grabs the rail on the hospital bed and attempts to rip it clean off in one smooth motion.  If successful the man, if he can see, will see something close to utter rage across Sandy's face.  She swings the rail, aiming for that faceless face, more specifically his mouth and really just attempts to cave his face in.  With the adrenaline coursing through her body she doesn't even think to treat the world like cardboard, or the man like he's made of paper, instead she just uses her full strength.  "Get off of her!"