Horrors of the Past C:3 Laboratory image

You awake to find yourself looking down at a pool of your own blood, a small crusher on the side along with a rusty dagger and a pair of tongs. Though looking down at your own body you find no damage to your body, so where did all the blood come from? You shake your head and simply think "It must be someone Else's" as you stand, looking towards the door as you plan to leave.