when embarrassed by forgetting your keys... One day, when I came home from work, the elevator was broken, and I happened to meet my neighbor, so I planned to climb the 13th floor to go home. The two of US climbed only a few floors to a bit of trouble, and finally climbed to the 13th floor, embarrassing things happened, he used a finger, the Fingerprint door immediately opened, and I forgot the key, ... I had to wait awkwardly at his house for my mom to jump off work and save me.