Nope. Pax would not be doing that. She did not trust the potion, the professor, or the migrating peacock in the slightest. She also wasn't interested in making a scene over it either so opted for a discreet alternative - it was convenient at times to be good at non-verbals and this was one of those times. A modified version of a refilling charm, that vanished the liquid in reverse as she pretended to drink it worked wonders, her wand very discreetly blocked from view by the pillow she held.

Pax opted for leaning on her desk with the pillow for support because that way she could also shield her face with her arms and would have to put less effort into feigning sleep.

And then she waited.