Another talk in the auditorium

Just as Becky had reached the toilets, she heard a call over the speakers. He said everyone should go back to the auditorium for another talk.

Becky was shocked. Just when he could finally free his intestines, they called for another talk.

She wasn't going to let go of that opportunity to poop and went into the bathroom, but before she could enter a cubicle, one of her classmates grabbed her arm, stopping her.

—Becky, we must go to the auditorium.

—I know, but —Becky looked at the cubicles—, I need to use the bathroom.

—If they see you here they will punish you.

—But...