Picture one button that is meant for the worst moment. You do not explain, you do not choose between options, you do not wait — you press, and something big happens at once. Its whole design is to skip thinking, because in a real emergency thinking takes time you may not have. Hold that: one press, no thought, everything moves.
Two branches
真的那顆按鈕
畫面本身：一個裝在牆上、櫃台下或手機裡的求救鈕。
noun · B2
A button you press in an emergency to call for help, for example when you are in danger or being attacked. Pressing it sets off an alarm or tells the police, a guard, or staff that you need help at once.
緊急求救按鈕
像按了那顆按鈕一樣反應
把「一按、不想、全部啟動」這個畫面搬到人的反應上。按鈕跳過思考是優點；人跳過思考就未必了——這正是這個說法帶批評味道的原因。這是教學上的連結，不是歷史來源的主張。
noun · B2
To act fast and without thinking carefully enough, because something unexpected or worrying has suddenly happened.
慌了手腳、倉促亂反應