If elevator doors fail to open, do not become alarmed. It's pretty unlikely that you will run out of air or are stuck in here with a someone who's never had the opportunity to act out their bloodlust. Chances are also slim that this elevator will start dropping uncontrollably. Simply keep ignoring the other person (or persons) in here with you and frantically press the button. Then say "Shit! Fuck!" when you realize you've been pressing the 4 button, not the Alarm button. Calmly begin repeatedly pressing the Alarm button. Now, look over your shoulder and exchange frantic expressions with the others--your shared trauma now makes it socially acceptable to acknowledge their existence. Next, step away from the Alarm button and allow someone else to violently stab at it since they can probably do it better. If you are pregnant, now would be a good time for your water to break. If you're a complete asshole with anger issues, and your monster only stays bound by societal constraints if your excursions into the world are brief and unruffled, then start coming undone in an alarming way that no one else can relate to (even though they are also trapped in an elevator). See that woman in the corner crying and hugging herself? Tell her she's making everything a thousand times worse. When she starts to cry even harder, shriek that no man could ever love her. Next, notice that everyone is now staring at you in various states of petrification and raise your arms above your head and begin thrashing them around as if you are grabbing invisible things and really trashing the place. Once you tire, retreat to a corner, slowly slide down it until you hit the floor of the elevator you are trapped in with a limited amount of oxygen, splay your legs straight out in front of you, and stare at everyone with an eery tranquility. If you are everyone else, pack yourselves like sardines in the opposite corner and direct your gaze at your shoes. Help is on the way.