After she'd had enough of polishing and cleaning the desk then making faces at them, she felt it was time to move to a new canvas. The windows! The Professor had gotten one grim free and really, she appreciated that because they were almost starting to kill her mood.

Lex skipped over to the windows and whipped out her wand.

Er...what was that spell again...? Vitrumonia, right! Ahem, she raised her wand. "Vitrumonia!"

BEEEAAAAAMM. Just LOOOK at that window! Have you ever seen one shine like it?? No? She didn't think so. Mhm, cleanest window in the room if you asked her. Time to do this good service to the next one over. "Vitrumonia!" Hehehehehe, such clean windows. She ran a finger along one of them, still grinning to herself before turning sharply to get another one and promptly slipping to the floor.

Owwwwwwwwwwwwwwwwwwwwwwwwww.

Merlin's beeeard. Who's bright idea was it to polish the floor while she was still walking on it?? Owwwww, ow ow owww.