While i'm certain I didn't, I have no reason to believe that someone else could have done it. For them, it's more reasonable to believe that I could've done it by accident than someone else would forge my signature. Honestly, I can't imagine how I could do it by accident, i mean i was familiar with the cancellation bubbles and what it would mean if i filled them out. I had seen test directions before on practice tests. I'm terrified that even if I take it again, something will go wrong. The whole process seems so strange, i can't explain. I definitely have the worse LSAT horror story.