Based on the plot of S:1 Ep:17

A few days ago Chloé and Sabrina had a falling out. The fight ended with Chloé acting as if Sabrina was a figment of her imagination. Calling her invisible, and saying that she must've disappeared.
In class today Sabrina was gone, that makes two days she's been gone. Today was different though, Chloé seemed to be making a fool of herself, claiming her purse was beating her up and being thrown around by a seemingly invisible force.

When this invisible force began throwing things around your class and sending anonymous mass texts to your class a few students slip out.

If you're a hero do you go out and meet the team
-Ladybug
-Chat Noir
-Swan
and your self

Or would you rather stay back and protect your peers?

If you're a civilian what will you do?
Do you plan a way to protect your classmates or stay put?

(And of course if you'd like a different scenario let me know)