Your mind whirls with terrified questions and desperate ideas. Your changed hands lift themselves up from the costumes forearms which are working like reverse puppet strings.
One final idea runs through your head. You think, Meh... What the Hell? It can't hurt to try considering your situation.
You rear back and lunge, sinking your teeth into the still rubber forearms. The costume which was squirming over your body begins to spasm and vibrate, as if in pain.
As you rend the rubber between your teeth, you can hear the store owner shouting, "What are you doing?! You can't do that!!"
You feel your teeth suddenly clack together as the rubber finally rips. The little bit of rubber still on your wrist melds with your skin. The costumes forearm flails around.
You snap your jaws on the other forearm. As it tears away, it leaves a long, thin bit of rubber still attached to your wrist which also melds to your skin.
The costume has loosened its hold on you as it lashes outward at shelves of costumes. Shouting in anger, you grab it and pull with all your might. It doesn't put up as much fight as it was a minute ago, as it slides off easily.
You throw the squiggling thing to the ground and start towards the front of the store.
You stop and turn wildly to the storeowner, intent on revenge. I could probably do some damage with these huge hands, you think as you clench them into big, meaty fists at your sides. The store owner looks livid, but his grimace turns to a sneer as he whirls his hand in quick flourish. Your instincts are suddenly screaming.
Without looking or thinking, you drop to the ground. The air wooshes above as the remains of the Free costume suddenly fly overhead, missing you by inches. It smacks into the store owner who crashes into the shelves, other suits ands masks falling into a pile.
You glance between your morphed hands and the pile before you tear off to the front door. You push the door open, and with heavy difficulty, you manage to hide your hands in your pockets. With your hands hidden from passersby, you run (strangely) back to your apartment.