Two or three months ago, I heard the fire alarm at school. My classmates and I were panic because we thought there's some worse thing that happen within the building. So our teacher advised us that we walk normal on the stairs and not using the elevator. Since it was so crowded on the stairs, so we move slowly. My heart starts to beat fast because I'm a little bit nervous in that time. Luckily when we were on the ground floor, nothing so serious that happened. So before going home, we check first the building and there I saw some double jacket fire hose that people can use in case fire happen. It's useful to have that thing.