After a Divination class like the last one they had, Lex was most happy to be headed for Astronomy. A class where the planets made sense and didn't tell you what you were meant to be. Merlin's beard, she'd always heard the Professor speaking about the ills of confusing Astronomy with Astrology but she didn't realize how much of a slap to the face it was before Divi. Sweet Circe. Bring on the logic. She'd missed it.

Of course the Gryffindor's first stop was the lint roller by the door. There was a time when she used to question it but Lex would question absolutely nothing right now. No. Lint rolling. Typical stuff.

After she as sure she didn't have any lint left on her, she entered the room to take her usual seat near the front. The first thing to catch her attention as she sat was the pack of balloons? Oh? Would they be filling these with helium then seeing how long the cold will take to pop them? If yes they needed to take bets. The Professor could either join in or turn a blind eye. She was fine with either option.

"Good Afternoon Professor, need any help with that?" Nevermind that she had NO IDEA what he was making. Helpful Lex was helpful.