You are a prisoner of Green Dolphin Street prison. You didn't think you deserved to be in that place with other criminals. That's why you decided you would escape that place. You couldn't take that prison any longer, you needed to escape
For your escape, you kidnapped a guard, stole his clothes and left him knocked out and hiding somewhere in that prison. You planned to disguise yourself to fool the other guards and get out of that place. You've made sure you picked the most antisocial and friendless guard you can find, so no guard will notice he's missing
Your plan began at night, when the lights go out, so that the darkness hides your true identity. All the guards seemed to ignore you, not noticing who you really were. You were loving that invisibility. Until someone really notices you. And it was none other than Miuccia Miuller, the head guard
"Hey!" She catches your attention, approaching you "I don't remember assigning you to patrol this area" She comments, clearly suspicious of you