That moment when you get in the elevator and hit the button for the floor you’re ON, rather than the floor you’re going TO– not once, not twice, but 3 times– and start cursing the idle elevator for being so stupid.
That subsequent moment when your super, who is standing in the lobby watching this scene unfold, silently puts his hand in the elevator and hits “6” for you, because he can see that you are not going to crack this code on your own.