He turned and looked at Erin, trying to understand her. God, she's ugly. He couldn't understand the joy she obtained from all of this, the fact she said it was fun made him angry. The other two boys seemed good, they were Gryffindors, surely they had some sense of morality within them. They probably couldn't contain this girl completely so they were following her to prevent her from going overboard.
Even though he could now go for his wand, he didn't want anything more to do with Erin however, he just wanted to go back to his dorm room. The exit to the cubicle blocked by three students, Oliver would have to go over them. If we walked, she could grab his ankle and trip him, so he decided for an alternative movement method.
Oliver took off in a gallop on his hands and feet, legs bent. Not a crawl, not a weird, high-butt straight leg crawl either, a gallop. He gracefully moved along the floor, and passed over Erin completely, his tummy hung to her and passed over her body, till it wiped across her face. He turned right and sped out of the room, reaching up for the door handle instead of standing, still presumably galloping in the corridor.
Sta 10, Agi 0, Str 0, Con 3, ArcP 10, Acc 7