The "sound" that terrified me

One day during preschool, the teachers decided to let us play musical chairs. I guess it was considered a recreational activity back then. For some reason they decided to use balloons in this game. In the last round they put a balloon in the chair. When the music stopped, the fastest person got to the chair first, sat on the balloon and of course it popped. When I heard that sound I immediately became alarmed and disoriented. I looked for an exit and ran for a door but couldn't get out. I can't remember if I hid under a desk or not, but I do remember my teacher grabbing me to comfort me and she asked me what was wrong. I started to cry, but I didn't know why. I just felt afraid and I couldn't stand the sound of that balloon popping and still I had my hands over my ears. The look on her face and the other teachers trying to figure out what was wrong with me, wondering why I was so afraid of the sound of a balloon popping. Some of the kids were giggling. My teacher begged me to tell her what happened to me, but I didn't remember anything.