Context: Just my luck , he was n't in his office . I made my way upstairs to my door and put the key into my door . My door would n't unlock ... great , I really had screwed up my key .

Question: What did I do to my key , so that it would n't work to open my door ?
Options:
0. I accidentally twisted the key out of shape .
1. I accidentally straightened the key into shape .
2. I left it in my pocket where nothing happened to it .
3. I left it in my backpack where nothing happened to it .
Answer: 0