Be an anonymous streaker.

She just got a genius idea. She's new here, no one knows her (except Bianca, but she's elsewhere and occupied.) and she doubted anyone saw her when she rushed in the stall.

The crotchless panties wouldn't hide much if worn normally, but putting them on her head would hide her identity, at least long enough to streak to the laundry room.

Putting the damp underwears on her face like a mask she waited to hear a little less voices and bolted out of the stall to run naked and wet in the hallways.

She could hear laughs and bickering behind her. To her horror, also the sound of a few pictures being taken.

She bumped on a few students on the way but managed to reach the laundry room. A few feet from it she slipped on the ground, losing the panties in the process.

She had no time to get them back and crawled inside the room before slamming the door behind her.