Stay put.

Whatever it is, you don't need to see it. You sit back down and ignore the commotion, diligently returning to your work and continuing to push sheets of paper around pointlessly, like you were paid to do. You just try your best to keep your head down and not draw any undue attention; whatever it is that's so interesting can surely wait until your union mandated water cooler break. You're sure it's nothing, anyway.

The supervisor is here before long, and she's not happy about the time being wasted.